{"title":"Speed Kits","description":"\u003cstyle\u003e* { box-sizing: border-box; }.install-hero {  background: linear-gradient(135deg, #000 0%, #333 100%);  color: #fff;  padding: 60px 20px;  text-align: center;  border-radius: 0 0 20px 20px;  margin-bottom: 40px;}.install-hero h1 {  font-size: clamp(28px, 5vw, 48px);  margin: 0 0 15px 0;  font-weight: 900;  text-transform: uppercase;  letter-spacing: 2px;}.install-hero p {  font-size: clamp(16px, 3vw, 20px);  margin: 0;  opacity: 0.9;}.nav-bar {  background: #f9f9f9;  padding: 20px;  border-radius: 10px;  text-align: center;  margin: 30px 0;  box-shadow: 0 2px 10px rgba(0,0,0,0.05);}.nav-bar a {  color: #000;  text-decoration: none;  font-weight: 700;  margin: 0 8px;  padding: 8px 10px;  border-radius: 5px;  transition: all 0.3s;  display: inline-block;  font-size: clamp(14px, 2.5vw, 16px);}.nav-bar a:hover {  background: #000;  color: #ffcc00;}.nav-bar a.active {  background: #ffcc00;  color: #000;  font-weight: 900;}.engine-grid {  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font-weight: 700;  position: relative;  z-index: 1;}.engine-card:hover a {  color: #ffcc00;}.stage-links {  background: #fff;  border-radius: 10px;  padding: 20px;  margin: 20px 0;  box-shadow: 0 2px 15px rgba(0,0,0,0.08);  text-align: center;}.stage-links h2 {  margin: 0 0 20px 0;  font-size: clamp(20px, 3.5vw, 26px);  font-weight: 800;  color: #000;}.stage-links a {  display: inline-block;  background: linear-gradient(to bottom, #f9f9f9 0%, #fff 100%);  color: #000;  text-decoration: none;  font-weight: 700;  padding: 15px 25px;  margin: 10px;  border-radius: 8px;  border: 2px solid #e0e0e0;  transition: all 0.3s;  font-size: clamp(14px, 2.5vw, 16px);}.stage-links a:hover {  background: #000;  color: #ffcc00;  border-color: #ffcc00;  transform: scale(1.05);}.info-section {  background: linear-gradient(to bottom, #f9f9f9 0%, #fff 100%);  border-left: 5px solid #28a745;  padding: 25px;  margin: 30px 0;  border-radius: 10px;  box-shadow: 0 2px 10px rgba(0,0,0,0.05);}.info-section h2 {  margin: 0 0 15px 0;  font-size: clamp(20px, 3.5vw, 26px);  font-weight: 800;  color: #000;}.info-section p {  color: #666;  line-height: 1.8;  margin: 10px 0;  font-size: clamp(14px, 2.5vw, 16px);}.cta-section {  background: linear-gradient(135deg, #ffcc00 0%, #ff9900 100%);  padding: 40px 20px;  border-radius: 15px;  text-align: center;  margin: 50px 0;  box-shadow: 0 8px 30px rgba(255,153,0,0.3);}.cta-section h2 {  color: #000;  font-size: clamp(24px, 4vw, 36px);  margin: 0 0 15px 0;  font-weight: 900;}.cta-section p {  color: #333;  font-size: clamp(16px, 3vw, 18px);  margin: 0;  line-height: 1.6;}.cta-section a {  color: #000;  text-decoration: none;  font-weight: 900;  border-bottom: 3px solid #000;  transition: all 0.3s;}.cta-section a:hover {  color: #fff;  border-bottom-color: #fff;}.footer-nav {  text-align: center;  padding: 20px;  margin: 30px 0;  font-size: clamp(14px, 2.5vw, 16px);}.footer-nav a {  color: #000;  text-decoration: none;  font-weight: 700;  margin: 0 15px;  border-bottom: 2px solid #ffcc00;  transition: all 0.3s;}.footer-nav a:hover {  color: #ffcc00;}@media (max-width: 768px) {  .engine-grid {    grid-template-columns: 1fr;  }  .nav-bar a {    display: block;    margin: 10px 0;  }  .stage-links a {    display: block;    margin: 10px 0;  }  .footer-nav a {    display: block;    margin: 10px 0;  }} .footer-links { text-align: left; padding: 20px; margin: 30px 0; font-size: clamp(12px, 2.5vw, 16px); } .footer-links a { color: #000; text-decoration: none; font-weight: 700; margin: 0 10px; border-bottom: 2px solid #ffcc00; transition: all 0.3s; display: inline-block; } .footer-links a:hover { color: #ffcc00; }\n  .info{background:linear-gradient(to bottom,#f9f9f9 0%,#fff 100%);border-left:5px solid #28a745;padding:25px;margin:30px 0;border-radius:10px;box-shadow:0 2px 10px rgba(0,0,0,.05)}.info h2{margin:0 0 15px 0;font-size:clamp(20px,3.5vw,26px);font-weight:800;color:#000}.info p{color:#666;line-height:1.8;margin:10px 0;font-size:clamp(14px,2.5vw,16px)}\n\u003c\/style\u003e\n\u003cdiv class=\"engine-grid\"\u003e\n\u003cdiv class=\"engine-card\"\u003e\n\u003ch2\u003e\u003ca title=\"Stage Kit Guide\" href=\"https:\/\/gtcmanufacturing.biz\/pages\/honda-gx200-racing-kit-selection-guide\"\u003eKIT GUIDE\u003c\/a\u003e\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"engine-card\"\u003e\n\u003ch2\u003e\u003ca title=\"Quick Reference Guide\" href=\"https:\/\/gtcracing.com\/pages\/gx200-racing-quick-reference\"\u003eQUICK REF\u003c\/a\u003e\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"engine-card\"\u003e\n\u003ch2\u003e\u003ca title=\"Technical Guides\" href=\"https:\/\/gtcracing.com\/pages\/honda-gx200-racing-technical-guides\"\u003eTECH GUIDES\u003c\/a\u003e\u003c\/h2\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","products":[{"product_id":"spark-plug-indexing-washer-kit-12-piece","title":"Spark Plug Indexing Washer Kit, 12 Piece","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/collections\/go-kart-speed-parts\" title=\"Main Menu\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Parts\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePerformance parts for Honda GX120, GX160, GX200 and 6.5 Clones, for Go Kart and Mini Bike.\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"Default Title","offer_id":43060096335931,"sku":"NR-SPIW","price":13.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/SPIW-2.jpg?v=1764893643"},{"product_id":"safety-wire-kit","title":"Safety Wire Kit","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/collections\/go-kart-speed-parts\" title=\"Main Menu\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Parts\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePerformance parts for Honda GX, Predator, Tillotson and Briggs Animal engines for Go Kart and Mini Bike.\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"Default Title","offer_id":43060096434235,"sku":"NR-340488R","price":22.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/340488R-2.jpg?v=1764893643"},{"product_id":"ring-gear-arc-gx390-kit-for-arc-6623-flywheels","title":"Ring Gear, ARC GX390 (Kit for ARC 6623 Flywheels)","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/collections\/go-kart-speed-parts\" title=\"Main Menu\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Parts\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePerformance parts for Honda GX, Predator, Tillotson and Briggs Animal engines for Go Kart and Mini Bike.\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"Default Title","offer_id":43060102299707,"sku":"NR-6693RGK","price":90.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/6693RGK-2_d0725541-e961-486d-abd4-006c3c525071.png?v=1764893696"},{"product_id":"qma-style-racing-air-filter-kit","title":"QMA Style Racing Air Filter Kit","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/collections\/go-kart-speed-parts\" title=\"Main Menu\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Parts\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePerformance parts for Honda GX, Predator, Tillotson and Briggs Animal engines for Go Kart and Mini Bike.\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"Default Title","offer_id":43060105150523,"sku":"NR-AIRFILTERKIT-QMA","price":34.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/AIRFILTERKIT-QMA-2_3a0bde55-218a-4123-8e3a-fcab35481794.png?v=1764893715"},{"product_id":"mounting-kit-hilliard-inferno-clutch-bearing-style","title":"Mounting Kit, Hilliard Inferno Clutch, Bearing Style","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/collections\/go-kart-speed-parts\" title=\"Main Menu\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Parts\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePerformance parts for Honda GX, Predator, Tillotson and Briggs Animal engines for Go Kart and Mini Bike.\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"Default Title","offer_id":43060107575355,"sku":"NR-HDC-CMK-NB","price":6.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/HDC-CMK-2T_3b30a398-939b-4e15-aa79-8d4934895c9f.png?v=1764893743"},{"product_id":"mounting-kit-flat-slide-mikuni-manifold-to-gx390","title":"Mounting Kit, Flat Slide Mikuni Manifold to GX390","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/collections\/go-kart-speed-parts\" title=\"Main Menu\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Parts\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePerformance parts for Honda GX, Predator, Tillotson and Briggs Animal engines for Go Kart and Mini Bike.\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"Default Title","offer_id":43060107509819,"sku":"NR-MOUNTKIT32-390","price":2.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/MOUNTKIT24-200-2T.jpg?v=1764893743"},{"product_id":"mounting-kit-390-carb-manifold-to-gx200-6-5-ohv-clone-long-style-1-piece-long-intake","title":"Mounting Kit, 390 Carb Manifold to GX200 \u0026 6.5 OHV Clone, Long Style (1 Piece, Long Intake)","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/collections\/go-kart-speed-parts\" title=\"Main Menu\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Parts\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePerformance parts for Honda GX, Predator, Tillotson and Briggs Animal engines for Go Kart and Mini Bike.\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"Default Title","offer_id":43060107837499,"sku":"NR-MOUNTKIT390-200","price":6.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/MOUNTKIT390-200-2.png?v=1764893743"},{"product_id":"mounting-kit-hilliard-inferno-clutch-bushing-style","title":"Mounting Kit, Hilliard Inferno Clutch, Bushing Style","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/collections\/go-kart-speed-parts\" title=\"Main Menu\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Parts\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePerformance parts for Honda GX, Predator, Tillotson and Briggs Animal engines for Go Kart and Mini Bike.\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"Default Title","offer_id":43060108427323,"sku":"NR-HDC-CMK","price":6.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/HDC-CMK-2_c4034e93-8e2a-4e99-a85e-038164928ba8.png?v=1764893744"},{"product_id":"motor-plate-lightweight-aluminum-gx200-6-5-ohv-clone-212-predator-for-mini-bikes-doodle-bugs","title":"Motor Plate, Lightweight Aluminum; GX200, 6.5 OHV Clone, \u0026 212 Predator; For Mini Bikes \u0026 Doodle Bugs","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/collections\/go-kart-speed-parts\" title=\"Main Menu\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Parts\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePerformance parts for Honda GX, Predator, Tillotson and Briggs Animal engines for Go Kart and Mini Bike.\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"Default Title","offer_id":43060108329019,"sku":"NR-MBPLATE-200-LW-KIT","price":49.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/MBPLATE-200-LW-KIT-2_76c28fc7-d6bb-448a-819f-9e0e619a02db.png?v=1764893744"},{"product_id":"motor-plate-gx200-6-5-ohv-clone-212-predator-for-mini-bikes-doodle-bugs","title":"Motor Plate; GX200, 6.5 OHV Clone, \u0026 212 Predator; For Mini Bikes \u0026 Doodle Bugs","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/collections\/go-kart-speed-parts\" title=\"Main Menu\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Parts\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePerformance parts for Honda GX, Predator, Tillotson and Briggs Animal engines for Go Kart and Mini Bike.\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"Default Title","offer_id":43060107870267,"sku":"NR-MBPLATE-200-KIT","price":42.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/MBPLATE-200-2T.jpg?v=1764893743"},{"product_id":"motor-mount-bolt-kit-pmr-mounts","title":"Motor Mount Bolt Kit, PMR Mounts","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/collections\/go-kart-speed-parts\" title=\"Main Menu\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Parts\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePerformance parts for Honda GX, Predator, Tillotson and Briggs Animal engines for Go Kart and Mini Bike.\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"Default Title","offer_id":43060108099643,"sku":"NR-PM-36BK","price":7.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/PM-36BK-2.jpg?v=1764893743"},{"product_id":"mounting-kit-flat-slide-mikuni-manifold-to-gx200-6-5-ohv-clone","title":"Mounting Kit, Flat Slide Mikuni Manifold to GX200 \u0026 6.5 OHV Clone","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/collections\/go-kart-speed-parts\" title=\"Main Menu\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Parts\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePerformance parts for Honda GX, Predator, Tillotson and Briggs Animal engines for Go Kart and Mini Bike.\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"Default Title","offer_id":43060108787771,"sku":"NR-MOUNTKIT24-200","price":2.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/MOUNTKIT24-200-2.jpg?v=1764893744"},{"product_id":"speed-kit-420-hemi-predator-stage-3","title":"Speed Kit, 420 Hemi Predator, Stage 3","description":"\u003cp\u003e\u003cb\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca style=\"background-color: rgb(255, 255, 0);\" title=\"Speed Kit Selection Guide\" href=\"https:\/\/gokartsusa.biz\/pages\/speed-kit-selection-guide\"\u003eSpeed Kit Selection Guide\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA step up from our \u003c\/span\u003e\u003cb\u003eStage 2 kit\u003c\/b\u003e\u003cspan\u003e, this will further empower the 420, producing up to 20+ HP!\u003c\/span\u003e\u003cbr\u003e\u003ci\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/i\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ci\u003e\u003cb\u003e*Note*\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003eUnlike the Stage 2, this kit will not work with OHVs! For a GX390 \u0026amp; 13\/15hp OHV Stage 3 kit\u003c\/i\u003e\u003ci\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/i\u003e\u003cb\u003eKit Includes:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRace\/Open Air Filter \u0026amp; Adapter\u003c\/li\u003e\n\u003cli\u003eHeavy Duty Valve Springs\u003c\/li\u003e\n\u003cli\u003eOffset Timing Key\u003c\/li\u003e\n\u003cli\u003e23.5mm Honda Race Carb (Bored)\u003c\/li\u003e\n\u003cli\u003e280 Lift Cam\u003c\/li\u003e\n\u003cli\u003eBillet Rod +.040\" Longer\u003c\/li\u003e\n\u003cli\u003eCarb, Side Cover, and Valve Cover Gaskets\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003eOptional \u003ca href=\"https:\/\/gokartsusa.biz\/collections\/gokart-minibike-racing-exhaust\"\u003eHeader\/Exhaust\u003c\/a\u003e\u003c\/i\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003eOptional Aluminum Flywheel\u003c\/i\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003e*Note:\u003c\/b\u003e\u003cspan\u003e Use of the choke bracket requires use of a stock Honda (or Chinese OHV) \"Air Filter-to-Carb\" Gasket. This is not included in the kit. You can use the one that came with the motor.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003ePictures are for reference only and may show optional parts. Please see above description for actual contents.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eFilter should be sprayed with a K\u0026amp;N type oil, especially for dirt applications. Oil is not included\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAlthough optional, the billet aluminum flywheel is recommended. Stock flywheels, especially \"clones\", are prone to failure and are dangerous.\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"No Flywheel \/ No Exhaust","offer_id":43110531170363,"sku":"NR-STAGE3KIT420","price":359.0,"currency_code":"USD","in_stock":true},{"title":"No Flywheel \/ Add Header- Kart \u0026 Mini Bike [+$40]","offer_id":43110531203131,"sku":"NR-STAGE3KIT420","price":399.0,"currency_code":"USD","in_stock":true},{"title":"No Flywheel \/ Add Mud Motor Header \u0026 Muffler (GX390) [+$45]","offer_id":43110531235899,"sku":"NR-STAGE3KIT420","price":405.0,"currency_code":"USD","in_stock":true},{"title":"Add Aluminum Flywheel - Recoil Start [+$166] \/ No Exhaust","offer_id":43110531268667,"sku":"NR-STAGE3KIT420","price":525.0,"currency_code":"USD","in_stock":true},{"title":"Add Aluminum Flywheel - Recoil Start [+$166] \/ Add Header- Kart \u0026 Mini Bike [+$40]","offer_id":43110531301435,"sku":"NR-STAGE3KIT420","price":565.0,"currency_code":"USD","in_stock":true},{"title":"Add Aluminum Flywheel - Recoil Start [+$166] \/ Add Mud Motor Header \u0026 Muffler (GX390) [+$45]","offer_id":43110531334203,"sku":"NR-STAGE3KIT420","price":570.0,"currency_code":"USD","in_stock":true},{"title":"Add Aluminum Flywheel - Electric Start [+$223] \/ No Exhaust","offer_id":43110531366971,"sku":"NR-STAGE3KIT420","price":582.0,"currency_code":"USD","in_stock":true},{"title":"Add Aluminum Flywheel - Electric Start [+$223] \/ Add Header- Kart \u0026 Mini Bike [+$40]","offer_id":43110531399739,"sku":"NR-STAGE3KIT420","price":622.0,"currency_code":"USD","in_stock":true},{"title":"Add Aluminum Flywheel - Electric Start [+$223] \/ Add Mud Motor Header \u0026 Muffler (GX390) [+$45]","offer_id":43110531432507,"sku":"NR-STAGE3KIT420","price":627.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/STAGE3KIT420-2.png?v=1764893745"},{"product_id":"speed-kit-224cc-predator-stage-3","title":"Speed Kit, 224cc Predator, Stage 3","description":"\u003cp\u003e\u003cb\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca style=\"background-color: rgb(255, 255, 0);\" title=\"Speed Kit Selection Guide\" href=\"https:\/\/gokartsusa.biz\/pages\/speed-kit-selection-guide\"\u003eSpeed Kit Selection Guide\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNow you are getting serious! A step-up from our \u003c\/span\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/products\/hop-up-kit-224cc-predator-stage-2\"\u003e\u003cb\u003eStage 2 kit\u003c\/b\u003e\u003c\/a\u003e\u003cspan\u003e, we add a racing camshaft, a 22mm carburetor, and a billet rod. Kit produces 13-15hp or more.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eKit Includes:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e22mm Mikuni Style Carb Kit\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eChoice of Cams (Rattlesnake or NR Racing's 252-0607)\u003c\/li\u003e\n\u003cli\u003e22lb or 26lb Springs (Depending on cam)\u003c\/li\u003e\n\u003cli\u003eAluminum Flywheel\u003c\/li\u003e\n\u003cli\u003eOffset Timing Key\u003c\/li\u003e\n\u003cli\u003eBillet Rod\u003c\/li\u003e\n\u003cli\u003eFlat-Top Piston with Rings\u003cspan\u003e \u003c\/span\u003e\u003ci\u003e(Not pictured)\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003eWrist Pin \u0026amp; Clips\u003cspan\u003e \u003c\/span\u003e\u003ci\u003e(Not pictured)\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003eComplete Gasket Kit\u003cspan\u003e \u003c\/span\u003e\u003ci\u003e(Some gaskets not shown in picture)\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003eOptional Header\/Exhaust\u003c\/i\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cb\u003e252 Cam Package:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eIncludes cam, 26lb springs, chrome moly pushrods, and reinforced rocker arms.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cb\u003eRattlesnake Cam Package:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eIncludes cam and 22lb springs ONLY\u003cbr\u003e\u003cbr\u003e\u003cb\u003e*Note:\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003eTo get maximum power, head should be ported and\/or milled. It is recommended to be milled .050\". Pictures are for reference only. See description for actual content. Parts may be different than pictures, depending on which motor and options are selected.\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eFilter should be sprayed with K\u0026amp;N type oil, especially in dirt applications. Oil not included.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cb\u003e*\u003c\/b\u003eThis kit will\u003cspan\u003e \u003c\/span\u003e\u003ci\u003e\u003cb\u003enot fit Hemi style 224 Predator or any 212 Predator engines\u003c\/b\u003e\u003c\/i\u003e. Please see our\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e212 Predator Kits\u003c\/b\u003e.\u003cbr\u003e\u003cbr\u003e\u003ci\u003e\u003cspan\u003eWARNING: Optional header\/pipe should be supported with a bracket\/brace to either the frame or the engine; otherwise, pipe may fracture or break.\u003c\/span\u003e\u003c\/i\u003e\n\u003c\/div\u003e","brand":"GoKarts USA®","offers":[{"title":"Rattlesnake Cam Package (GX200\/Clone)","offer_id":43110531104827,"sku":"NR-STAGE3HOPUP-224","price":302.0,"currency_code":"USD","in_stock":true},{"title":"252-0607 Cam Package (GX200\/Clone)","offer_id":43110531137595,"sku":"NR-STAGE3HOPUP-224","price":378.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/STAGE3HOPUP-2.png?v=1764893746"},{"product_id":"speed-kit-420-hemi-engines-stage-4","title":"Speed Kit, 420 Hemi Engines Stage 4","description":"\u003cdiv\u003e\n\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/pages\/speed-kit-selection-guide\" title=\"Speed Kit Selection Guide\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Kit Selection Guide\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003eThe Stage 4 kit starts with a package similar to that of the\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eStage 3\u003c\/b\u003e, but adds a ported and milled hemi head with stainless valves, a stud kit, and heavy duty valve train components. This kit allows up to 35+ HP out of a 420!\u003cbr\u003e\u003cbr\u003e\u003cb\u003e\u003cspan\u003eKit Includes:\u003c\/span\u003e\u003c\/b\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eFully Ported HEMI Race Head\u003c\/li\u003e\n\u003cli\u003eHigh Flow 40mm \/ 34mm Valves with Lash Caps\u003c\/li\u003e\n\u003cli\u003eDual Springs with Titanium Retainers\u003c\/li\u003e\n\u003cli\u003e307 Race Cam\u003c\/li\u003e\n\u003cli\u003eShaft Mounted Roller Rockers\u003c\/li\u003e\n\u003cli\u003eChrome Moly Pushrods\u003c\/li\u003e\n\u003cli\u003eChoice of Carbs\u003cspan\u003e \u003c\/span\u003e\u003ci\u003e(Or use your own)\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003eForged Flat-Top Piston with Rings\u003c\/li\u003e\n\u003cli\u003eBillet Rod\u003cspan\u003e \u003c\/span\u003e\u003ci\u003e(+.040\" Longer)\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003eOffset Timing Key\u003c\/li\u003e\n\u003cli\u003eCarb, Insulator, Head, Valve Cover, and Case Gaskets\u003c\/li\u003e\n\u003cli\u003eARP Bolt Kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cb\u003e*Note:\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003ePicture is for reference only and may show optional parts. See above description for actual content. Filter should be sprayed with K\u0026amp;N type oil, especially in dirt applications. These kits are intended for experienced engine builders. Some clearancing, fitment, or other engine building \"tricks\" may be needed. Billet aluminum flywheel required.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003ci\u003eDue to the head work required for this kit, please allow 1 week to ship.\u003c\/i\u003e\u003c\/span\u003e\u003c\/div\u003e","brand":"GoKarts USA®","offers":[{"title":"None (Customer To Supply Carb \/ No Flywheel","offer_id":43110532153403,"sku":"NR-STAGE4KIT420-H","price":895.0,"currency_code":"USD","in_stock":true},{"title":"None (Customer To Supply Carb \/ Add Aluminum Flywheel - Recoil Start","offer_id":43110532186171,"sku":"NR-STAGE4KIT420-H","price":1061.0,"currency_code":"USD","in_stock":true},{"title":"None (Customer To Supply Carb \/ Add Aluminum Flywheel - Electric Start","offer_id":43110532218939,"sku":"NR-STAGE4KIT420-H","price":1118.0,"currency_code":"USD","in_stock":true},{"title":"34mm Round Slide Mikuni - Gas \/ No Flywheel","offer_id":43110532251707,"sku":"NR-STAGE4KIT420-H","price":1123.0,"currency_code":"USD","in_stock":true},{"title":"34mm Round Slide Mikuni - Gas \/ Add Aluminum Flywheel - Recoil Start","offer_id":43110532284475,"sku":"NR-STAGE4KIT420-H","price":1289.0,"currency_code":"USD","in_stock":true},{"title":"34mm Round Slide Mikuni - Gas \/ Add Aluminum Flywheel - Electric Start","offer_id":43110532317243,"sku":"NR-STAGE4KIT420-H","price":1289.0,"currency_code":"USD","in_stock":true},{"title":"34mm Flat Slide Mikuni Gas \/ No Flywheel","offer_id":43110532350011,"sku":"NR-STAGE4KIT420-H","price":1125.0,"currency_code":"USD","in_stock":true},{"title":"34mm Flat Slide Mikuni Gas \/ Add Aluminum Flywheel - Recoil Start","offer_id":43110532382779,"sku":"NR-STAGE4KIT420-H","price":1295.0,"currency_code":"USD","in_stock":true},{"title":"34mm Flat Slide Mikuni Gas \/ Add Aluminum Flywheel - Electric Start","offer_id":43110532415547,"sku":"NR-STAGE4KIT420-H","price":1345.0,"currency_code":"USD","in_stock":true},{"title":"33mm Mikuni Pumper Gas \/ No Flywheel","offer_id":43110532448315,"sku":"NR-STAGE4KIT420-H","price":1344.0,"currency_code":"USD","in_stock":true},{"title":"33mm Mikuni Pumper Gas \/ Add Aluminum Flywheel - Recoil Start","offer_id":43110532481083,"sku":"NR-STAGE4KIT420-H","price":1511.0,"currency_code":"USD","in_stock":true},{"title":"33mm Mikuni Pumper Gas \/ Add Aluminum Flywheel - Electric Start","offer_id":43110532513851,"sku":"NR-STAGE4KIT420-H","price":1568.0,"currency_code":"USD","in_stock":true},{"title":"33mm Mikuni Pumper Methanol \/ No Flywheel","offer_id":43110532546619,"sku":"NR-STAGE4KIT420-H","price":1321.0,"currency_code":"USD","in_stock":true},{"title":"33mm Mikuni Pumper Methanol \/ Add Aluminum Flywheel - Recoil Start","offer_id":43110532579387,"sku":"NR-STAGE4KIT420-H","price":1487.0,"currency_code":"USD","in_stock":true},{"title":"33mm Mikuni Pumper Methanol \/ Add Aluminum Flywheel - Electric Start","offer_id":43110532612155,"sku":"NR-STAGE4KIT420-H","price":1544.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/STAGE4KIT420-H-2.png?v=1764893745"},{"product_id":"speed-kit-for-gx340-gx390-420-predator-and-13-15hp-ohv-stage-1","title":"Speed Kit for GX340-GX390, 420 Predator, and 13\/15hp OHV, Stage 1","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/pages\/speed-kit-selection-guide\" title=\"Speed Kit Selection Guide\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Kit Selection Guide\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBasic kit for improving the performance of GX390s, 420 Predators, 13\/15hp (440-460cc) OHVs. Simple to install, you can expect significant performance increases!\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eKit Includes:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRace\/Open Air Filter \u0026amp; Adapter\u003c\/li\u003e\n\u003cli\u003eHeavy Duty Valve Springs\u003c\/li\u003e\n\u003cli\u003eOffset Timing Key\u003c\/li\u003e\n\u003cli\u003eJet for Application\u003cspan\u003e \u003c\/span\u003e\u003ci\u003e(*see notes below*)\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003eOptional Ignition Coil\u003c\/i\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ci\u003eOptional\u003cspan\u003e \u003c\/span\u003e\u003c\/i\u003e\u003ca title=\"Twister CAM\" href=\"\/products\/250-twister-performance-camshaft-for-gx240-to-gx390-420-predator\"\u003e\u003cb\u003eTwister Camshaft\u003c\/b\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003eOptional \u003ca href=\"https:\/\/gokartsusa.biz\/collections\/gokart-minibike-racing-exhaust\"\u003eHeader\/Exhaust\u003c\/a\u003e\u003c\/i\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003e*Note:\u003c\/b\u003e\u003cspan\u003e UT2 series Hondas (2012 \u0026amp; up) have rev limited coils and will require a new coil to exceed 4000rpm. The UT2 coils (4 wire) can only be used with stock flywheels or 6693 ARC flywheels. If using any other flywheels, you must run a UT1 style coil (single wire). Most 390 “Clone”, 420s, and 460s have UT1 style coils already (however, some Lifans and 420s have a rev-limited digital ignition).\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe correct jets must be selected for the application. If unsure, we recommend you check your STOCK main. If stock main is a:\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e#92-97, use a UT1 kit\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e#98-102, use a hemi kit\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u0026gt;102, use a UT2 kit\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eManufacturers have been known to use different jets on the same models, so it is important to know the stock jet size!\u003cbr\u003e\u003cbr\u003e*Picture is for reference only and may show optional parts. See above description for actual content. Header not included unless specified.\u003cbr\u003eFilter should be sprayed with a K\u0026amp;N type oil, especially in dirt applications. Oil not included\u003c\/span\u003e\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"No Jet Included (Customer Must Drill Stock Jet) \/ None Included","offer_id":43110531661883,"sku":"NR-STAGE1KIT390","price":43.0,"currency_code":"USD","in_stock":true},{"title":"No Jet Included (Customer Must Drill Stock Jet) \/ Add UT2 Coil without Rev Limiter for UT2 Honda","offer_id":43110531694651,"sku":"NR-STAGE1KIT390","price":113.0,"currency_code":"USD","in_stock":true},{"title":"No Jet Included (Customer Must Drill Stock Jet) \/ Add Genuine Honda UT1 Coil","offer_id":43110531727419,"sku":"NR-STAGE1KIT390","price":87.0,"currency_code":"USD","in_stock":true},{"title":"Honda UT1 Jetting Jet \/ None Included","offer_id":43110531760187,"sku":"NR-STAGE1KIT390","price":55.0,"currency_code":"USD","in_stock":true},{"title":"Honda UT1 Jetting Jet \/ Add UT2 Coil without Rev Limiter for UT2 Honda","offer_id":43110531792955,"sku":"NR-STAGE1KIT390","price":125.0,"currency_code":"USD","in_stock":true},{"title":"Honda UT1 Jetting Jet \/ Add Genuine Honda UT1 Coil","offer_id":43110531825723,"sku":"NR-STAGE1KIT390","price":99.0,"currency_code":"USD","in_stock":true},{"title":"Honda UT2 Jetting Jet \/ None Included","offer_id":43110531858491,"sku":"NR-STAGE1KIT390","price":64.0,"currency_code":"USD","in_stock":true},{"title":"Honda UT2 Jetting Jet \/ Add UT2 Coil without Rev Limiter for UT2 Honda","offer_id":43110531891259,"sku":"NR-STAGE1KIT390","price":134.0,"currency_code":"USD","in_stock":true},{"title":"Honda UT2 Jetting Jet \/ Add Genuine Honda UT1 Coil","offer_id":43110531924027,"sku":"NR-STAGE1KIT390","price":108.0,"currency_code":"USD","in_stock":true},{"title":"420 Hemi Jetting \/ None Included","offer_id":43110531956795,"sku":"NR-STAGE1KIT390","price":57.0,"currency_code":"USD","in_stock":true},{"title":"420 Hemi Jetting \/ Add UT2 Coil without Rev Limiter for UT2 Honda","offer_id":43110531989563,"sku":"NR-STAGE1KIT390","price":127.0,"currency_code":"USD","in_stock":true},{"title":"420 Hemi Jetting \/ Add Genuine Honda UT1 Coil","offer_id":43110532022331,"sku":"NR-STAGE1KIT390","price":101.0,"currency_code":"USD","in_stock":true},{"title":"13hp Clone Jetting \/ None Included","offer_id":43110532055099,"sku":"NR-STAGE1KIT390","price":55.0,"currency_code":"USD","in_stock":true},{"title":"13hp Clone Jetting \/ Add UT2 Coil without Rev Limiter for UT2 Honda","offer_id":43110532087867,"sku":"NR-STAGE1KIT390","price":125.0,"currency_code":"USD","in_stock":true},{"title":"13hp Clone Jetting \/ Add Genuine Honda UT1 Coil","offer_id":43110532120635,"sku":"NR-STAGE1KIT390","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/STAGE1KIT390-2.png?v=1764893745"},{"product_id":"speed-kit-gx200-6-5-ohv-clone-stage-1","title":"Speed Kit, GX200 \u0026 6.5 OHV Clone, Stage 1","description":"\u003cp\u003e\u003cb\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/pages\/speed-kit-selection-guide\" title=\"Speed Kit Selection Guide\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Kit Selection Guide\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBasic kit for improving the performance of GX200s and 6.5 OHV clone engines. Simple to install, you can expect significant performance increases. Approximately 10+ HP for 6.5s and GX200s. This kit will not fit Harbor Freight 212 Predator. Please see our \u003c\/span\u003e\u003cb\u003ePredator \u003c\/b\u003e\u003cb\u003ekits\u003c\/b\u003e\u003cspan\u003e for those applications.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eKit Includes:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eRace\/Open Air Filter \u0026amp; Adapter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eChoke Bracket\u003c\/li\u003e\n\u003cli\u003eMain Jet\u003c\/li\u003e\n\u003cli\u003eUpgraded Valve Springs (22lb)\u003c\/li\u003e\n\u003cli\u003eValve Cover Gasket\u003c\/li\u003e\n\u003cli\u003eChoice of Small Fan or Aluminum Flywheel\u003c\/li\u003e\n\u003cli\u003eOffset Timing Key\u003c\/li\u003e\n\u003cli\u003eOptional Header\/Exhaust\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cb\u003e\u003cbr\u003e*Note:\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003e\u003cspan\u003ePicture is for reference only and may show optional parts. See above description for actual content. Parts may be different than pictures, depending on which motor and options are selected. (When selecting the Aluminum flywheel, the small fan is not included nor needed). Head gasket is not included.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cbr\u003eThis package is sold as a kit and cannot be modified or changed. However, all parts are available individually if you would like a customized kit. Use the above contents as a guideline!\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eFilter should be sprayed with a K\u0026amp;N type oil, especially in dirt applications. Oil not included.\u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eAluminum flywheel recommended. Stock flywheels, especially \"clones\", are prone to failure and are very dangerous!\u003c\/span\u003e\n\u003c\/div\u003e","brand":"GoKarts USA®","offers":[{"title":"Kit with Small Fan and Offset Key (S1-GX) \/ No Exhaust","offer_id":43110531465275,"sku":"NR-STAGE1HOPUP","price":46.0,"currency_code":"USD","in_stock":true},{"title":"Kit with Small Fan and Offset Key (S1-GX) \/ Add Header- Kart","offer_id":43110531498043,"sku":"NR-STAGE1HOPUP","price":85.0,"currency_code":"USD","in_stock":true},{"title":"Kit with Small Fan and Offset Key (S1-GX) \/ Add Header- Mini Bike","offer_id":43110531530811,"sku":"NR-STAGE1HOPUP","price":79.0,"currency_code":"USD","in_stock":true},{"title":"Kit with Aluminum Flywheel (Dyno PVL) \/ No Exhaust","offer_id":43110531563579,"sku":"NR-STAGE1HOPUP","price":114.0,"currency_code":"USD","in_stock":true},{"title":"Kit with Aluminum Flywheel (Dyno PVL) \/ Add Header- Kart","offer_id":43110531596347,"sku":"NR-STAGE1HOPUP","price":153.0,"currency_code":"USD","in_stock":true},{"title":"Kit with Aluminum Flywheel (Dyno PVL) \/ Add Header- Mini Bike","offer_id":43110531629115,"sku":"NR-STAGE1HOPUP","price":147.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/STAGE1HOPUP-2_ac7f44e7-508f-491b-a427-628d0c4f80fc.png?v=1764893745"},{"product_id":"speed-kit-for-kart-engines-gx240-gx270-stage-2","title":"Speed Kit for Kart Engines, GX240, GX270, Stage 2","description":"\u003cdiv\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/pages\/speed-kit-selection-guide\" title=\"Speed Kit Selection Guide\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Kit Selection Guide\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eAs a step up from the \u003c\/span\u003e\u003cb\u003eStage \u003c\/b\u003e\u003cb\u003e1\u003ca href=\"https:\/\/www.nrracing.com\/product-p\/stage1kit270.htm\"\u003e\u003c\/a\u003e\u003c\/b\u003e\u003cspan\u003e, this kit is designed to further improve the power of GX240s and GX270s by adding a larger carb and cam.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cb\u003eIncludes:\u003c\/b\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e\u003c\/b\u003e\u003cspan\u003eRace\/Open Air Filter \u0026amp; Adapter\u003cbr\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGX390 Carb\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eHeavy Duty Valve Springs\u003cbr\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eOffset Timing Key\u003cbr\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e102 Main Jet\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e260 Lift High-Performance Cam\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCarb and Side Cover Gaskets\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003eOptional Ignition Coil\u003c\/i\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003eOptional Billet Connecting Rod\u003c\/i\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eOptional Header\/Exhaust\u003c\/span\u003e\u003c\/i\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e*Note:\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003eUse of the choke bracket requires use of a stock Honda (or Chines OHV) \"Air Filter-to-Carb\" gasket. This is not included in the kit. You can use the one that came with the motor.\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eUT2 series Hondas (2012 \u0026amp; up) or later have a built-in rev limiter in the coil and will require a new coil to exceed 4000rpm. The UT2 coils (4 wire) can only be used with stock flywheels. \u003c\/span\u003e\u003cspan\u003eIf using a billet flywheel, you must run a UT1 style coil (single wire). \u003c\/span\u003e\u003cspan\u003eChinese engines usually have UT1 style coils already. However, some Lifans and 420s have a digital ignition and will need a Honda UT1 coil to run the billet flywheel.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eFilter should be sprayed with a K\u0026amp;N type oil, especially for dirt applications. Oil not included. \u003c\/span\u003e\u003cspan\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003ePicture is for reference only and may show optional parts. See above description for actual content. Header not included unless specified.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e\u003cb\u003eWarning: Billet aluminum flywheel recommended. Stock flywheels, especially \"clones\", are prone to failure and are very dangerous!\u003cbr\u003e\u003cbr\u003e\u003c\/b\u003eIf ordering a 301, be aware that some engines have large cam journals (.6357); most 301s have standard cam journals (same as GX270s). If you have a 301, we recommend you measure your cam journals before ordering this. \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cb\u003eThis kit will not fit engines with large journals!\u003c\/b\u003e\u003c\/span\u003e\u003c\/div\u003e","brand":"GoKarts USA®","offers":[{"title":"No Coil \/ No Rod \/ No Exhaust","offer_id":43110532644923,"sku":"sku-52593218650428","price":170.0,"currency_code":"USD","in_stock":true},{"title":"No Coil \/ No Rod \/ Add Header- Kart \u0026 Mini Bike","offer_id":43110532677691,"sku":"sku-52593218683196","price":210.0,"currency_code":"USD","in_stock":true},{"title":"No Coil \/ No Rod \/ Add Mud Motor Header \u0026 Muffler (GX390)","offer_id":43110532710459,"sku":"sku-52593218715964","price":215.0,"currency_code":"USD","in_stock":true},{"title":"No Coil \/ Add Billet Connecting Rod \/ No Exhaust","offer_id":43110532743227,"sku":"NR-STAGE2KIT270","price":241.0,"currency_code":"USD","in_stock":true},{"title":"No Coil \/ Add Billet Connecting Rod \/ Add Header- Kart \u0026 Mini Bike","offer_id":43110532775995,"sku":"NR-STAGE2KIT270","price":282.0,"currency_code":"USD","in_stock":true},{"title":"No Coil \/ Add Billet Connecting Rod \/ Add Mud Motor Header \u0026 Muffler (GX390)","offer_id":43110532808763,"sku":"NR-STAGE2KIT270","price":287.0,"currency_code":"USD","in_stock":true},{"title":"Add UT2 Coil without Rev Limiter for UT2 Honda \/ No Rod \/ No Exhaust","offer_id":43110532841531,"sku":"sku-52593218748732","price":240.0,"currency_code":"USD","in_stock":true},{"title":"Add UT2 Coil without Rev Limiter for UT2 Honda \/ No Rod \/ Add Header- Kart \u0026 Mini Bike","offer_id":43110532874299,"sku":"sku-52593218781500","price":282.0,"currency_code":"USD","in_stock":true},{"title":"Add UT2 Coil without Rev Limiter for UT2 Honda \/ No Rod \/ Add Mud Motor Header \u0026 Muffler (GX390)","offer_id":43110532907067,"sku":"sku-52593218814268","price":287.0,"currency_code":"USD","in_stock":true},{"title":"Add UT2 Coil without Rev Limiter for UT2 Honda \/ Add Billet Connecting Rod \/ No Exhaust","offer_id":43110532939835,"sku":"NR-STAGE2KIT270","price":401.0,"currency_code":"USD","in_stock":true},{"title":"Add UT2 Coil without Rev Limiter for UT2 Honda \/ Add Billet Connecting Rod \/ Add Header- Kart \u0026 Mini Bike","offer_id":43110532972603,"sku":"NR-STAGE2KIT270","price":441.0,"currency_code":"USD","in_stock":true},{"title":"Add UT2 Coil without Rev Limiter for UT2 Honda \/ Add Billet Connecting Rod \/ Add Mud Motor Header \u0026 Muffler (GX390)","offer_id":43110533005371,"sku":"NR-STAGE2KIT270","price":375.0,"currency_code":"USD","in_stock":true},{"title":"Add Genuine Honda UT1 Coil \/ No Rod \/ No Exhaust","offer_id":43110533038139,"sku":"sku-52593218847036","price":214.0,"currency_code":"USD","in_stock":true},{"title":"Add Genuine Honda UT1 Coil \/ No Rod \/ Add Header- Kart \u0026 Mini Bike","offer_id":43110533070907,"sku":"sku-52593218879804","price":370.0,"currency_code":"USD","in_stock":true},{"title":"Add Genuine Honda UT1 Coil \/ No Rod \/ Add Mud Motor Header \u0026 Muffler (GX390)","offer_id":43110533103675,"sku":"sku-52593218912572","price":375.0,"currency_code":"USD","in_stock":true},{"title":"Add Genuine Honda UT1 Coil \/ Add Billet Connecting Rod \/ No Exhaust","offer_id":43110533136443,"sku":"NR-STAGE2KIT270","price":375.0,"currency_code":"USD","in_stock":true},{"title":"Add Genuine Honda UT1 Coil \/ Add Billet Connecting Rod \/ Add Header- Kart \u0026 Mini Bike","offer_id":43110533169211,"sku":"NR-STAGE2KIT270","price":415.0,"currency_code":"USD","in_stock":true},{"title":"Add Genuine Honda UT1 Coil \/ Add Billet Connecting Rod \/ Add Mud Motor Header \u0026 Muffler (GX390)","offer_id":43110533201979,"sku":"NR-STAGE2KIT270","price":420.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/STAGE2KIT270-2.png?v=1764893745"},{"product_id":"speed-kit-for-gx240-gx270-9-11hp-ohv-and-301-choose-options-stage-1","title":"*Speed Kit for GX240, GX270, 9\/11hp OHV, and 301, (Choose Options) Stage 1","description":"\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/pages\/speed-kit-selection-guide\" title=\"Speed Kit Selection Guide\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Kit Selection Guide\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eStage 1 kit for improving the performance of GX270s and 270\/301cc OHVs. Simple to install, you can expect significant performance increases!\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eKit Includes:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eRace\/Open Air Filter \u0026amp; Adapter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eHeavy Duty Valve Springs\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOffset Timing Key\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003e#95 Main Jet\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003ci\u003eOptional Ignition Coil\u003c\/i\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003ci\u003eOptional \u003c\/i\u003e\u003c\/span\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/products\/250-twister-performance-camshaft-for-gx240-to-gx390-420-predator\"\u003e\u003cb\u003eTwister Camshaft\u003c\/b\u003e\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eOptional Header\/Exhaust\u003c\/span\u003e\u003c\/i\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ci\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/i\u003e\u003cb\u003e\u003cbr\u003e*Note:\u003c\/b\u003e\u003cspan\u003e UT2 series Hondas (2012 \u0026amp; up) have rev limited coils and will require a new coil to exceed 4000rpm. The UT2 coils (4 wire) can only be used with stock flywheels. If billet flywheel, you must run a UT1 style coil (single wire). Most “clones” \u0026amp; 301s have UT1 style coils already (however, some Lifans have a rev-limited digital ignition).\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cspan\u003e*Picture is for reference only and may show optional parts. See above description for actual content. Header not included unless specified.\u003cbr\u003e\u003cbr\u003eMain Jet supplied works best with older Hondas and most clones. Newer Hondas (UT1) may require a bigger jet.\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003eFilter should be sprayed with a K\u0026amp;N type oil, especially in dirt applications. Oil not included.\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eBillet aluminum flywheel recommended. Stock flywheels, especially \"clones\", are prone to failure and are very dangerous!\u003cbr\u003e\u003cbr\u003e\u003cb\u003e\u003cspan\u003eWARNING: Header\/pipe should be supported with a bracket\/brace to either the frame or the engine; otherwise, pipe may fracture or break.\u003c\/span\u003e\u003c\/b\u003e\n\u003c\/div\u003e","brand":"GoKarts USA®","offers":[{"title":"No Coil \/ No Cam \/ No Exhaust","offer_id":43060109443131,"sku":"NR-STAGE1KIT270","price":42.0,"currency_code":"USD","in_stock":true},{"title":"No Coil \/ No Cam \/ Add Header- Kart \u0026 Mini Bike","offer_id":43060109475899,"sku":"NR-STAGE1KIT270","price":82.0,"currency_code":"USD","in_stock":true},{"title":"No Coil \/ Add Twister Cam \/ No Exhaust","offer_id":43060109508667,"sku":"NR-STAGE1KIT270","price":104.0,"currency_code":"USD","in_stock":true},{"title":"No Coil \/ Add Twister Cam \/ Add Header- Kart \u0026 Mini Bike","offer_id":43060109541435,"sku":"NR-STAGE1KIT270","price":144.0,"currency_code":"USD","in_stock":true},{"title":"Add UT2 Coil without Rev Limiter for UT2 Hondas Only \/ No Cam \/ No Exhaust","offer_id":43060109574203,"sku":"NR-STAGE1KIT270","price":108.0,"currency_code":"USD","in_stock":true},{"title":"Add UT2 Coil without Rev Limiter for UT2 Hondas Only \/ No Cam \/ Add Header- Kart \u0026 Mini Bike","offer_id":43060109606971,"sku":"NR-STAGE1KIT270","price":148.0,"currency_code":"USD","in_stock":true},{"title":"Add UT2 Coil without Rev Limiter for UT2 Hondas Only \/ Add Twister Cam \/ No Exhaust","offer_id":43060109639739,"sku":"NR-STAGE1KIT270","price":170.0,"currency_code":"USD","in_stock":true},{"title":"Add UT2 Coil without Rev Limiter for UT2 Hondas Only \/ Add Twister Cam \/ Add Header- Kart \u0026 Mini Bike","offer_id":43060109672507,"sku":"NR-STAGE1KIT270","price":210.0,"currency_code":"USD","in_stock":true},{"title":"Add Genuine Honda UT1 Coil \/ No Cam \/ No Exhaust","offer_id":43060109705275,"sku":"NR-STAGE1KIT270","price":83.0,"currency_code":"USD","in_stock":true},{"title":"Add Genuine Honda UT1 Coil \/ No Cam \/ Add Header- Kart \u0026 Mini Bike","offer_id":43060109738043,"sku":"NR-STAGE1KIT270","price":120.0,"currency_code":"USD","in_stock":true},{"title":"Add Genuine Honda UT1 Coil \/ Add Twister Cam \/ No Exhaust","offer_id":43060109770811,"sku":"NR-STAGE1KIT270","price":145.0,"currency_code":"USD","in_stock":true},{"title":"Add Genuine Honda UT1 Coil \/ Add Twister Cam \/ Add Header- Kart \u0026 Mini Bike","offer_id":43060109803579,"sku":"NR-STAGE1KIT270","price":185.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/STAGE1KIT270-2.png?v=1764893746"},{"product_id":"speed-kit-224cc-predator-stage-4","title":"Speed Kit, 224cc Predator, Stage 4","description":"\u003cp\u003e\u003cb\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/pages\/speed-kit-selection-guide\" title=\"Speed Kit Selection Guide\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Kit Selection Guide\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor serious engine builders looking for great power and good reliability, we offer our Stage 4 kit. This package is similar to that of the \u003c\/span\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/products\/stage-3-speed-kit-for-224cc-predator-engines\"\u003e\u003cb\u003eStage 3 kit\u003c\/b\u003e\u003c\/a\u003e\u003cspan\u003e, but adds a ported and milled Head, stainless valves, billet rockers, a flat-top piston, and a great all-around cam package.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eKit Includes:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePorted \u0026amp; Milled 22cc \"Clone\" Head\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eApproximately 11:1 Compression Ratio for Use with Pump Gas\u003c\/li\u003e\n\u003cli\u003eStainless High-flow 27mm Intake \u0026amp; 24mm Exhaust\u003c\/li\u003e\n\u003cli\u003e37lb Springs\u003c\/li\u003e\n\u003cli\u003e1.2 Ratio Billet Rocker Arms\u003c\/li\u003e\n\u003cli\u003eChrome Moly Pushrods\u003c\/li\u003e\n\u003cli\u003e280-0611 Camshaft\u003c\/li\u003e\n\u003cli\u003eStud Kit\u003c\/li\u003e\n\u003cli\u003eLash Caps\u003c\/li\u003e\n\u003cli\u003eBillet Rod\u003c\/li\u003e\n\u003cli\u003e70mm Flat-Top Piston\u003c\/li\u003e\n\u003cli\u003ePiston Rings, Wrist Pin, and Clips\u003c\/li\u003e\n\u003cli\u003eBillet Guide Plate\u003c\/li\u003e\n\u003cli\u003eFull Gasket Kit\u003cspan\u003e \u003c\/span\u003e\u003ci\u003e(Not pictured)\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003eChoice of Carbs\u003cspan\u003e \u003c\/span\u003e\u003ci\u003e(Or use customer supplied carb)\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003eOptional Flywheels\u003c\/i\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cb\u003e*Note:\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003eThis kit will\u003cspan\u003e \u003c\/span\u003e\u003ci\u003e\u003cb\u003enot fit Hemi style 224 Predator or any 212 Predator engines\u003c\/b\u003e\u003c\/i\u003e. Please see our\u003cspan\u003e \u003c\/span\u003e\u003cb\u003e212 Predator kits\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003efor those applications. These kits are intended for experienced engine builders. Some clearance, fitment, or other engine building \"tricks\" may be needed. Picture is for reference only. Actual content is based on above description and customer selections. (In other words, the flywheel shown is optional!) Filter should be sprayed with K\u0026amp;N type oil, especially in dirt applications. Oil not included.\u003cspan\u003e \u003c\/span\u003e\u003ci\u003eAluminum flywheel REQUIRED. Stock flywheels are prone to failure and very DANGEROUS.\u003c\/i\u003e\u003cbr\u003e\u003cbr\u003e\u003ci\u003eDue to the head work involved in these kits, please allow 1 week to ship.\u003c\/i\u003e\n\u003c\/div\u003e","brand":"GoKarts USA®","offers":[{"title":"None (Customer to Supply Carb) \/ No Flywheel","offer_id":43060109836347,"sku":"NR-STAGE4HOPUP-224","price":465.0,"currency_code":"USD","in_stock":true},{"title":"None (Customer to Supply Carb) \/ Super Light 6602 with Small Fan GX200","offer_id":43060109869115,"sku":"NR-STAGE4HOPUP-225","price":604.0,"currency_code":"USD","in_stock":true},{"title":"None (Customer to Supply Carb) \/ Dyno PVL (Cast) Aluminum Flywheel","offer_id":43060109901883,"sku":"NR-STAGE4HOPUP-224","price":542.0,"currency_code":"USD","in_stock":true},{"title":"None (Customer to Supply Carb) \/ ARC Billet Aluminum Flywheel - 6619","offer_id":43060109934651,"sku":"NR-STAGE4HOPUP-224","price":579.0,"currency_code":"USD","in_stock":true},{"title":"None (Customer to Supply Carb) \/ Lightweight (Includes PVL Electronic Ignition Coil)","offer_id":43060109967419,"sku":"NR-STAGE4HOPUP-224","price":798.0,"currency_code":"USD","in_stock":true},{"title":"22mm Mikuni - Gas \/ No Flywheel","offer_id":43060110000187,"sku":"NR-STAGE4HOPUP-224","price":559.0,"currency_code":"USD","in_stock":true},{"title":"22mm Mikuni - Gas \/ Super Light 6602 with Small Fan GX200","offer_id":43060110032955,"sku":"NR-STAGE4HOPUP-224","price":698.0,"currency_code":"USD","in_stock":true},{"title":"22mm Mikuni - Gas \/ Dyno PVL (Cast) Aluminum Flywheel","offer_id":43060110065723,"sku":"NR-STAGE4HOPUP-224","price":465.0,"currency_code":"USD","in_stock":true},{"title":"22mm Mikuni - Gas \/ ARC Billet Aluminum Flywheel - 6619","offer_id":43060110098491,"sku":"NR-STAGE4HOPUP-224","price":673.0,"currency_code":"USD","in_stock":true},{"title":"22mm Mikuni - Gas \/ Lightweight (Includes PVL Electronic Ignition Coil)","offer_id":43060110131259,"sku":"NR-STAGE4HOPUP-224","price":892.0,"currency_code":"USD","in_stock":true},{"title":"24mm Flat Slide Mikuni - Gas \/ No Flywheel","offer_id":43060110164027,"sku":"NR-STAGE4HOPUP-224","price":670.0,"currency_code":"USD","in_stock":true},{"title":"24mm Flat Slide Mikuni - Gas \/ Super Light 6602 with Small Fan GX200","offer_id":43060110196795,"sku":"NR-STAGE4HOPUP-224","price":809.0,"currency_code":"USD","in_stock":true},{"title":"24mm Flat Slide Mikuni - Gas \/ Dyno PVL (Cast) Aluminum Flywheel","offer_id":43060110229563,"sku":"NR-STAGE4HOPUP-224","price":741.0,"currency_code":"USD","in_stock":true},{"title":"24mm Flat Slide Mikuni - Gas \/ ARC Billet Aluminum Flywheel - 6619","offer_id":43060110262331,"sku":"NR-STAGE4HOPUP-224","price":784.0,"currency_code":"USD","in_stock":true},{"title":"24mm Flat Slide Mikuni - Gas \/ Lightweight (Includes PVL Electronic Ignition Coil)","offer_id":43060110295099,"sku":"NR-STAGE4HOPUP-224","price":1003.0,"currency_code":"USD","in_stock":true},{"title":"28mm Gas Black Round Slide \/ No Flywheel","offer_id":43060110327867,"sku":"NR-STAGE4HOPUP-224","price":611.0,"currency_code":"USD","in_stock":true},{"title":"28mm Gas Black Round Slide \/ Super Light 6602 with Small Fan GX200","offer_id":43060110360635,"sku":"NR-STAGE4HOPUP-224","price":750.0,"currency_code":"USD","in_stock":true},{"title":"28mm Gas Black Round Slide \/ Dyno PVL (Cast) Aluminum Flywheel","offer_id":43060110393403,"sku":"NR-STAGE4HOPUP-224","price":688.0,"currency_code":"USD","in_stock":true},{"title":"28mm Gas Black Round Slide \/ ARC Billet Aluminum Flywheel - 6619","offer_id":43060110426171,"sku":"NR-STAGE4HOPUP-224","price":725.0,"currency_code":"USD","in_stock":true},{"title":"28mm Gas Black Round Slide \/ Lightweight (Includes PVL Electronic Ignition Coil)","offer_id":43060110458939,"sku":"NR-STAGE4HOPUP-224","price":944.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/STAGE4HOPUP-2_ac2ccdea-7acd-417b-ba39-d2fa9cce304e.png?v=1764893746"},{"product_id":"jet-kit-main-pz22-gas","title":"Jet Kit, Main, PZ22, Gas","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/collections\/go-kart-speed-parts\" title=\"Main Menu\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Parts\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePerformance parts for Honda GX, Predator, Tillotson and Briggs Animal engines for Go Kart and Mini Bike.\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"Default Title","offer_id":43060111245371,"sku":"NR-555536","price":66.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/555536-2_03491586-0b3e-40e6-80dc-d3a3d81ef895.png?v=1764893750"},{"product_id":"jet-adjustable-needle-kit-gx200-methanol","title":"Jet, Adjustable Needle, Kit, GX200, Methanol","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/collections\/go-kart-speed-parts\" title=\"Main Menu\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Parts\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePerformance parts for Honda GX, Predator, Tillotson and Briggs Animal engines for Go Kart and Mini Bike.\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"Default Title","offer_id":43060111736891,"sku":"NR-ADJ-JET-200-A","price":41.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/ADJ-JET-200-A-2_7bb02edd-e37a-4c3a-bf66-53adfc37dce9.png?v=1764893752"},{"product_id":"speed-kit-224cc-predator-stage-2","title":"Speed Kit, 224cc Predator, Stage 2","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/pages\/speed-kit-selection-guide\" title=\"Speed Kit Selection Guide\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Kit Selection Guide\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eFor those looking to get the maximum performance on a budget, we offer our Stage 2 kit. We only use genuine Honda components where possible to improve reliability and power.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThis is the same as our \u003c\/span\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/products\/hop-up-kit-224cc-predator-stage-1\"\u003eStage 1 kit\u003c\/a\u003e\u003cspan\u003e, but with the addition of a bored carb and a performance cam to produce a solid 12+ HP on 224cc \"Max Performance\" Predators.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eIncludes:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRace\/Open Air Filter \u0026amp; Adapter\u003c\/li\u003e\n\u003cli\u003eChoke Bracket\u003c\/li\u003e\n\u003cli\u003e22lb Springs (Spring choice depends on availability)\u003c\/li\u003e\n\u003cli\u003eAluminum Flywheel\u003c\/li\u003e\n\u003cli\u003eTiming Key\u003c\/li\u003e\n\u003cli\u003eMod 2 Camshaft\u003c\/li\u003e\n\u003cli\u003eBored .650\" Performance Carb (Gas)\u003c\/li\u003e\n\u003cli\u003eCarb Gasket\u003c\/li\u003e\n\u003cli\u003eValve Cover Gasket\u003c\/li\u003e\n\u003cli\u003eCase Gasket\u003c\/li\u003e\n\u003cli\u003eOptional Header\/Exhaust\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003e*Note:\u003c\/b\u003e\u003cspan\u003e Filter should be sprayed with a K\u0026amp;N type oil, especially for dirt applications. Oil not included.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis kit will not fit Hemi style 224 Predator or any 212 Predator engines. Please see our \u003c\/span\u003e212 Predator kits\u003cspan\u003e. \u003c\/span\u003e\u003cspan\u003ePictures are for reference only. See description for actual content. Parts may be different than the pictures, depending on which motor and options are selected.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003ci\u003e\u003cspan\u003eWARNING: Optional header\/pipe should be supported with a bracket\/brace to either the frame or the engine; otherwise, pipe may fracture or break.\u003c\/span\u003e\u003c\/i\u003e\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"No Exhaust","offer_id":43110533234747,"sku":"NR-STAGE2HOPUP-224","price":229.0,"currency_code":"USD","in_stock":true},{"title":"Add Header- Kart","offer_id":43110533267515,"sku":"NR-STAGE2HOPUP-224","price":265.0,"currency_code":"USD","in_stock":true},{"title":"Add Header- Mini Bike","offer_id":43110533300283,"sku":"NR-STAGE2HOPUP-224","price":264.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/STAGE2HOPUP-2T_dc8802e0-6775-4a2e-bafd-692855a80ed8.png?v=1764893752"},{"product_id":"inserts-for-thread-repair-kit-6mm","title":"Inserts for Thread Repair Kit, 6mm","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/collections\/go-kart-speed-parts\" title=\"Main Menu\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Parts\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePerformance parts for Honda GX, Predator, Tillotson and Briggs Animal engines for Go Kart and Mini Bike.\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"Default Title","offer_id":43060111999035,"sku":"NR-91732A262","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/91732A262-2.png?v=1764893752"},{"product_id":"jet-adjustable-needle-kit-gx390-gas","title":"Jet, Adjustable Needle, Kit, GX390, Gas","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/collections\/go-kart-speed-parts\" title=\"Main Menu\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Parts\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePerformance parts for Honda GX, Predator, Tillotson and Briggs Animal engines for Go Kart and Mini Bike.\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"Default Title","offer_id":43060112130107,"sku":"NR-ADJ-JET-390-G","price":32.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/ADJ-JET-390-G-2_1936e512-1285-4e43-96c0-0780ec7f3df0.png?v=1764893752"},{"product_id":"head-cylinder-gx160-ut2-thai-18cc-genuine-honda","title":"Head, Cylinder, GX160, UT2, Thai, 18cc: Genuine Honda","description":"\u003cstyle\u003e\n.footer-links { text-align: left; padding: 20px; margin: 30px 0; font-size: clamp(12px, 2.5vw, 16px); } .footer-links a { color: #000; text-decoration: none; font-weight: 700; margin: 0 10px; border-bottom: 2px solid #ffcc00; transition: all 0.3s; display: inline-block; } .footer-links a:hover { color: #ffcc00; }\n\u003c\/style\u003e\n\u003cdiv class=\"nonselectable\"\u003e\n\u003cdiv class=\"footer-links\"\u003e\n\u003ca href=\"https:\/\/gokartsusa.biz\/pages\/parts-for-powersports\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/collections\/cylinder-head-kart-racing\" title=\"Cylinder Heads\"\u003eHead\u003c\/a\u003e | \u003ca href=\"https:\/\/gokartsusa.biz\/pages\/head-selection-guide\" title=\"Guide\"\u003eGuide\u003c\/a\u003e | \u003ca href=\"https:\/\/gokartsusa.biz\/collections\/go-kart-speed-parts\" title=\"Racing Engine Parts\"\u003eHotrod\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca style=\"background-color: rgb(255, 255, 0);\" title=\"Main Menu\" href=\"https:\/\/gokartsusa.biz\/collections\/honda-gx-racing-parts\"\u003eSpeed Parts\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e18cc Genuine Honda Cylinder Head for GX160 UT2\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHeads are finished, but do not include valves, studs, springs, guide plates, seals,\u003cspan\u003e \u003c\/span\u003e\u003ci\u003eetc.\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003eNew style chamber design.\u003c\/li\u003e\n\u003cli\u003eStock sets are cut for 26mm intake and 24mm exhaust (UT2) valves.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ci\u003e\u003cspan\u003e*\u003cb\u003eNote:\u003c\/b\u003e Heads with oversized seats do not have seats blended to ports.\u003c\/span\u003e\u003c\/i\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"Stock Seats (Up to 27mm Intake) \/ Do Not Mill","offer_id":43060112523323,"sku":"NR-12210-Z4M-405","price":46.0,"currency_code":"USD","in_stock":true},{"title":"Stock Seats (Up to 27mm Intake) \/ Mill Head .025\" [+$28]","offer_id":43060112556091,"sku":"sku-52398893695292","price":74.0,"currency_code":"USD","in_stock":true},{"title":"Stock Seats (Up to 27mm Intake) \/ Mill Head .050\" [+$28]","offer_id":43060112588859,"sku":"sku-52398893728060","price":74.0,"currency_code":"USD","in_stock":true},{"title":"Stock Seats (Up to 27mm Intake) \/ Mill Head .065\" [+$28]","offer_id":43060112621627,"sku":"sku-52398893760828","price":74.0,"currency_code":"USD","in_stock":true},{"title":"Stock Seats (Up to 27mm Intake) \/ Mill Head .080\" [+$28]","offer_id":43060112654395,"sku":"sku-52398893793596","price":46.0,"currency_code":"USD","in_stock":true},{"title":"Intake Seat for 28.5 Valve Installed [+$44] \/ Do Not Mill","offer_id":43060112687163,"sku":"NR-12210-Z4M-406","price":90.0,"currency_code":"USD","in_stock":true},{"title":"Intake Seat for 28.5 Valve Installed [+$44] \/ Mill Head .025\" [+$28]","offer_id":43060112719931,"sku":"sku-52398893826364","price":118.0,"currency_code":"USD","in_stock":true},{"title":"Intake Seat for 28.5 Valve Installed [+$44] \/ Mill Head .050\" [+$28]","offer_id":43060112752699,"sku":"sku-52398893859132","price":118.0,"currency_code":"USD","in_stock":true},{"title":"Intake Seat for 28.5 Valve Installed [+$44] \/ Mill Head .065\" [+$28]","offer_id":43060112785467,"sku":"sku-52398893891900","price":118.0,"currency_code":"USD","in_stock":true},{"title":"Intake Seat for 28.5 Valve Installed [+$44] \/ Mill Head .080\" [+$28]","offer_id":43060112818235,"sku":"sku-52398893924668","price":118.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/12210-Z4M-405-2.jpg?v=1764893752"},{"product_id":"speed-kit-212-predator-ohv-non-hemi-stage-1","title":"Speed Kit, 212 Predator OHV (Non-Hemi), Stage 1","description":"\u003cdiv\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/pages\/speed-kit-selection-guide\" title=\"Speed Kit Selection Guide\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Kit Selection Guide\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003eProduces approximately 10+ HP. Simple to install, you can expect significant performance increases with this kit.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cb\u003eKit Includes:\u003c\/b\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eRace\/Open Air Filter \u0026amp; Adapter\u003c\/li\u003e\n\u003cli\u003eChoke Bracket\u003c\/li\u003e\n\u003cli\u003eCorrect Jet for Application\u003c\/li\u003e\n\u003cli\u003eUpgraded Valve Springs (18 or 22lb)\u003c\/li\u003e\n\u003cli\u003eValve Cover Gasket\u003c\/li\u003e\n\u003cli\u003eChoice of Small Fan or Aluminum Flywheel\u003c\/li\u003e\n\u003cli\u003eOptional Header\/Exhaust\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003ci\u003e*Note: This kit will not fit Hemi Predator engines.\u003c\/i\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eFilter should be sprayed with K\u0026amp;N type oil, especially in dirt applications. \u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003ePictures are for reference only. See description for actual content. Parts may be different from pictures, depending on which motor and options are selected. When selecting billet flywheel, the small fan and offset key are not included nor are they necessary. Head gasket is not included.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eAluminum or Honda flywheel recommended. Stock flywheels are prone to failure and are dangerous!\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eThis kit is an NR Racing recommendation. Kit cannot be modified or changed. However, all parts are available individually if you would like to create your own customized kit. Just use the above contents as a guideline!\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003ci\u003eWarning: Optional header\/pipe should be supported with a bracket or brace to either the frame or engine; otherwise, it may fracture or break.\u003c\/i\u003e\u003c\/div\u003e","brand":"GoKarts USA®","offers":[{"title":"Kit with Small Fan and Offset Key (S1-P) \/ No Exhaust","offer_id":43060112851003,"sku":"NR-STAGE1HOPUP-P","price":48.0,"currency_code":"USD","in_stock":true},{"title":"Kit with Small Fan and Offset Key (S1-P) \/ Add Header- Kart","offer_id":43060112883771,"sku":"NR-STAGE1HOPUP-P","price":81.0,"currency_code":"USD","in_stock":true},{"title":"Kit with Small Fan and Offset Key (S1-P) \/ Add Header- Mini Bike","offer_id":43060112916539,"sku":"sku-52269993165116","price":81.0,"currency_code":"USD","in_stock":true},{"title":"Kit with Aluminum Flywheel (6625) \/ No Exhaust","offer_id":43060112949307,"sku":"NR-STAGE1HOPUP-P","price":140.0,"currency_code":"USD","in_stock":true},{"title":"Kit with Aluminum Flywheel (6625) \/ Add Header- Kart","offer_id":43060112982075,"sku":"NR-STAGE1HOPUP-P","price":173.0,"currency_code":"USD","in_stock":true},{"title":"Kit with Aluminum Flywheel (6625) \/ Add Header- Mini Bike","offer_id":43060113014843,"sku":"sku-52269993197884","price":173.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/STAGE1HOPUP-P-2.png?v=1764893752"},{"product_id":"speed-kit-gx200-6-5-ohv-clone-stage-2","title":"Speed Kit, GX200 \u0026 6.5 OHV Clone, Stage 2","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca style=\"background-color: rgb(255, 255, 0);\" title=\"Speed Kit Selection Guide\" href=\"https:\/\/gokartsusa.biz\/pages\/speed-kit-selection-guide\"\u003eSpeed Kit Selection Guide\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor those looking to get the maximum performance on a budget, we offer our Stage 2 kit. We only use genuine Honda components where possible to improve reliability and power. This is the same as our \u003c\/span\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/products\/stage-1-hop-up-kit-for-gx200-and-65-ohv\"\u003e\u003cb\u003eStage 1 kit\u003c\/b\u003e\u003c\/a\u003e\u003cspan\u003e, but with the addition of a bored carb and a performance cam to produce a solid 12+ HP on GX200s.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eIncludes:\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRace\/Open Air Filter \u0026amp; Adapter\u003c\/li\u003e\n\u003cli\u003eChoke Bracket\u003c\/li\u003e\n\u003cli\u003e22lb Springs (Spring choice depends on availability)\u003c\/li\u003e\n\u003cli\u003eAluminum Flywheel\u003c\/li\u003e\n\u003cli\u003eTiming Key\u003c\/li\u003e\n\u003cli\u003eMod 2 Camshaft\u003c\/li\u003e\n\u003cli\u003eBored .650 Performance Carb (Gas)\u003c\/li\u003e\n\u003cli\u003eCarb Gasket\u003c\/li\u003e\n\u003cli\u003eValve Cover Gasket\u003c\/li\u003e\n\u003cli\u003eCase Gasket\u003c\/li\u003e\n\u003cli\u003eOptional Header\/Exhaust\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cb\u003e*Note:\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003e\u003cspan\u003eThis kit will not fit Harbor Freight 212 (Predator) engines. Please see our \u003c\/span\u003e\u003cb\u003ePredator Kits\u003c\/b\u003e\u003cspan\u003e for those applications.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv\u003eFilter should be sprayed with K\u0026amp;N type oil, especially in dirt applications. Oil not included.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003ePictures are for reference only. See description for actual content. Parts may be different\u003c\/div\u003e\n\u003cdiv\u003ethan pictures, depending on which motor \u0026amp; options are selected.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003eWARNING: Optional header\/pipe should be supported with a bracket\/brace to either the frame or the engine; otherwise, pipe may fracture or break.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"No Exhaust","offer_id":43110537166907,"sku":"NR-STAGE2HOPUP","price":226.0,"currency_code":"USD","in_stock":true},{"title":"Add Header- Kart","offer_id":43110537199675,"sku":"NR-STAGE2HOPUP","price":265.0,"currency_code":"USD","in_stock":true},{"title":"Add Header- Mini Bike","offer_id":43110537232443,"sku":"NR-STAGE2HOPUP","price":261.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/STAGE2HOPUP-2.png?v=1764893753"},{"product_id":"speed-kit-212-predator-ohv-non-hemi-stage-2","title":"Speed Kit, 212 Predator OHV (Non-Hemi), Stage 2","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/pages\/speed-kit-selection-guide\" title=\"Speed Kit Selection Guide\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Kit Selection Guide\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003eFor those looking to get maximum performance on a budget, we offer our Stage 2 kit.\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eThis is the same as our \u003c\/span\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/products\/basic-kit-for-improving-the-performance-of-212-ohv-predators\"\u003e\u003cb\u003eStage 1 kit\u003c\/b\u003e\u003c\/a\u003e\u003cspan\u003e, but with the addition of a bored carb and a performance cam to produce a solid 12+ HP.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cb\u003eIncludes:\u003c\/b\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eRace\/Open Air Filter \u0026amp; Adapter\u003c\/li\u003e\n\u003cli\u003e18 or 22lb Springs (Spring choice depends on availability)\u003c\/li\u003e\n\u003cli\u003eAluminum Flywheel\u003c\/li\u003e\n\u003cli\u003eMod 2 Camshaft\u003c\/li\u003e\n\u003cli\u003eBored .650\" Performance Carb (Gas)\u003c\/li\u003e\n\u003cli\u003eCarb Gasket\u003c\/li\u003e\n\u003cli\u003eValve Cover Gasket\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003eOptional Header\/Exhaust\u003c\/i\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003e*Note:\u003c\/b\u003e\u003cspan\u003e Filter should be sprayed with a K\u0026amp;N type oil, especially for dirt applications. Oil not included -\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis kit non-hemi Predators only: Model 69730 [R210] that came with stamped steel valve cover. It will not work with hemi Predators: Model 60363 [210FA] that came with cast aluminum valve cover.\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePictures are for reference only. See description for actual content. Parts may be different than the pictures, depending on which motor and options are selected.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003ci\u003e\u003cspan\u003eWARNING: Optional header\/pipe should be supported with a bracket\/brace to either the frame or the engine; otherwise, pipe may fracture or break.\u003c\/span\u003e\u003c\/i\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"No Exhaust","offer_id":43110533660731,"sku":"NR-STAGE2HOPUP-P","price":269.0,"currency_code":"USD","in_stock":true},{"title":"Add Header- Kart","offer_id":43110533693499,"sku":"NR-STAGE2HOPUP-P","price":304.0,"currency_code":"USD","in_stock":true},{"title":"Add Header- Mini Bike","offer_id":43110533726267,"sku":"NR-STAGE2HOPUP-P","price":302.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/STAGE2HOPUP-P-2.png?v=1764893753"},{"product_id":"speed-kit-gx340-to-gx390-420-predator-13-15hp-ohv-stage-2","title":"Speed Kit; GX340 to GX390, 420 Predator, \u0026 13\/15hp OHV; Stage 2","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e\u003ca style=\"background-color: #ffff00;\" title=\"Speed Kit Selection Guide\" href=\"https:\/\/gokartsusa.biz\/pages\/speed-kit-selection-guide\"\u003eSpeed Kit Selection Guide\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eStage 2 Speed Kit for GX340-GX390, 420 Predator, and 13\/15hp (440-460cc) OHV Engines\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cbr\u003e\u003c\/b\u003e\u003cspan\u003eAs a step up from the \u003c\/span\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/products\/stage-1-speed-kit-for-gx340-gx390-420-predator-and-1315hp-ohv\"\u003e\u003cb\u003eStage 1\u003c\/b\u003e\u003c\/a\u003e\u003cspan\u003e, this kit is designed to improve the power and durability of GX340s and GX390s.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eIncludes:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRace\/Open Air Filter \u0026amp; Adapter\u003c\/li\u003e\n\u003cli\u003e23.5mm (Bored) Honda Race Carb\u003c\/li\u003e\n\u003cli\u003eHeavy Duty Valve Springs\u003c\/li\u003e\n\u003cli\u003eOffset Timing Key\u003c\/li\u003e\n\u003cli\u003e\u003cb\u003eTwister Camshaft\u003c\/b\u003e\u003c\/li\u003e\n\u003cli\u003eCarb and Side Cover (7-Bolt) Gaskets\u003c\/li\u003e\n\u003cli\u003eAdditional main jet for optional tuning\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003eOptional \u003ca href=\"https:\/\/gokartsusa.biz\/collections\/gokart-minibike-racing-exhaust\"\u003eHeader\/Exhaust\u003c\/a\u003e\u003c\/i\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003eOptional Aluminum Flywheel\u003c\/i\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cb\u003e*Note:\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003e\u003cspan\u003eUse of the choke bracket requires use of a stock Honda (or Chines OHV) \"Air Filter-to-Carb\" gasket. This is not included in the kit. You can use the one that came with the motor.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eUT2 series Hondas (2012 \u0026amp; up) or later have a built-in rev limiter in the coil and will require a new coil to exceed 4000rpm. The UT2 coils (4 wire) can only be used with stock flywheels, and 6693 Billet flywheel.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003eIf using another billet flywheel, you must run a UT1 style coil (single wire).\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e13\/15 Chinese Engines (414, 420, 460) usually have UT1 style coils already. However, some Lifans and 420s have a digital ignition and will need a Honda UT1 coil to run the billet flywheel.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cbr\u003eHeader sold separately.\u003cbr\u003e\u003cbr\u003eFilter should be sprayed with a K\u0026amp;N type oil, especially for dirt applications. Oil not included \u003cbr\u003e\u003cbr\u003ePicture is for reference only and may show optional parts. See above description for actual content.\u003cbr\u003e\u003ci\u003e\u003cspan\u003e\u003cbr\u003eWarning: Billet aluminum flywheel recommended. Stock flywheels, especially \"clones\" are prone to failure and are very dangerous!\u003c\/span\u003e\u003c\/i\u003e\n\u003c\/div\u003e","brand":"GoKarts USA®","offers":[{"title":"No Flywheel \/ No Coil","offer_id":43110533759035,"sku":"NR-STAGE2KIT390","price":192.0,"currency_code":"USD","in_stock":true},{"title":"No Flywheel \/ Add UT2 Coil without Rev Limiter for UT2 Honda","offer_id":43110533791803,"sku":"NR-STAGE2KIT390","price":262.0,"currency_code":"USD","in_stock":true},{"title":"No Flywheel \/ Add Genuine Honda UT1 Coil","offer_id":43110533824571,"sku":"NR-STAGE2KIT390","price":236.0,"currency_code":"USD","in_stock":true},{"title":"Add Aluminum Flywheel - Recoil Start \/ No Coil","offer_id":43110533857339,"sku":"NR-STAGE2KIT390","price":358.0,"currency_code":"USD","in_stock":true},{"title":"Add Aluminum Flywheel - Recoil Start \/ Add UT2 Coil without Rev Limiter for UT2 Honda","offer_id":43110533890107,"sku":"NR-STAGE2KIT390","price":428.0,"currency_code":"USD","in_stock":true},{"title":"Add Aluminum Flywheel - Recoil Start \/ Add Genuine Honda UT1 Coil","offer_id":43110533922875,"sku":"NR-STAGE2KIT390","price":402.0,"currency_code":"USD","in_stock":true},{"title":"Add Aluminum Flywheel - Electric Start \/ No Coil","offer_id":43110533955643,"sku":"NR-STAGE2KIT390","price":415.0,"currency_code":"USD","in_stock":true},{"title":"Add Aluminum Flywheel - Electric Start \/ Add UT2 Coil without Rev Limiter for UT2 Honda","offer_id":43110533988411,"sku":"NR-STAGE2KIT390","price":485.0,"currency_code":"USD","in_stock":true},{"title":"Add Aluminum Flywheel - Electric Start \/ Add Genuine Honda UT1 Coil","offer_id":43110534021179,"sku":"NR-STAGE2KIT390","price":459.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/STAGE2KIT390-2.png?v=1764893753"},{"product_id":"racing-head-for-gx240-gx270-with-genuine-honda-core","title":"Racing Head for GX240 \u0026 GX270 with Genuine Honda Core","description":"\u003cstyle\u003e\n.footer-links { text-align: left; padding: 20px; margin: 30px 0; font-size: clamp(12px, 2.5vw, 16px); } .footer-links a { color: #000; text-decoration: none; font-weight: 700; margin: 0 10px; border-bottom: 2px solid #ffcc00; transition: all 0.3s; display: inline-block; } .footer-links a:hover { color: #ffcc00; }\n\u003c\/style\u003e\n\u003cdiv class=\"nonselectable\"\u003e\n\u003cdiv class=\"footer-links\"\u003e\n\u003ca href=\"https:\/\/gokartsusa.biz\/pages\/parts-for-powersports\"\u003e\u003c\/a\u003e\u003ca title=\"Cylinder Heads\" href=\"https:\/\/gokartsusa.biz\/collections\/cylinder-head-kart-racing\"\u003eHead\u003c\/a\u003e | \u003ca title=\"Guide\" href=\"https:\/\/gokartsusa.biz\/pages\/head-selection-guide\"\u003eGuide\u003c\/a\u003e | \u003ca title=\"Racing Engine Parts \" href=\"https:\/\/gokartsusa.biz\/collections\/go-kart-speed-parts\"\u003eHotrod\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003ctable width=\"100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd valign=\"top\"\u003e\n\u003ctable width=\"100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd background=\"https:\/\/www.nrracing.com\/v\/vspfiles\/templates\/nrracing\/images\/expand_tab_back.gif\" id=\"Header_ProductDetail_ProductDetails\" class=\"vCSS_tab_selected\"\u003e\u003cspan class=\"productnamecolorSMALL colors_productname\" id=\"Header_ProductDetail_ProductDetails_span\"\u003eDescription -\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd width=\"90%\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable width=\"100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\" class=\"colors_descriptionbox\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"100%\" valign=\"top\"\u003e\n\u003ctable width=\"100%\" cellpadding=\"0\" cellspacing=\"0\" border=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cdiv id=\"ProductDetail_ProductDetails_div\"\u003e\n\u003cspan\u003e\u003cb\u003eRacing Head for GX240 \u0026amp; GX270 with Genuine Honda Core\u003c\/b\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003cdiv\u003eAll heads use Genuine Honda cores. (These flow better, are less porous, and stronger than aftermarket heads.) Heads are ported, bead blasted, flowed, and milled. Heads can be fitted with either single or dual springs. Single springs are recommended for 306 and smaller cams. Dual springs are recommended for 307 and larger cams.\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003eHigh-torque heads use small port castings to increase velocity and maximize low-end power at loss of high-end RPM. Best for most applications\u003c\/div\u003e\n\u003cdiv\u003eMaximum HP heads use large port castings to increase high RPM power at some loss of low-end torque\u003c\/div\u003e\n\u003cdiv\u003e\u003cb\u003e\u003cbr\u003eProduct Includes:\u003c\/b\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003ePorted and bead blasted head\u003c\/li\u003e\n\u003cli\u003eStainless intake and exhaust valves\u003c\/li\u003e\n\u003cli\u003eAluminum or titanium retainers\u003c\/li\u003e\n\u003cli\u003eSplit keepers\u003c\/li\u003e\n\u003cli\u003eHD single or dual springs\u003c\/li\u003e\n\u003cli\u003eValve spring shims\u003c\/li\u003e\n\u003cli\u003e3-Angle valve job\u003c\/li\u003e\n\u003cli\u003eMilled to specs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003ci\u003e*Note: Heads are built to order. Please allow approximately 1-5 days before shipping. Large port heads may take longer.\u003c\/i\u003e\u003c\/div\u003e\n\u003cspan id=\"product_description\"\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"GoKarts USA®","offers":[{"title":"Default Title","offer_id":43060113211451,"sku":"NR-HEAD-RACING-270-HONDA","price":321.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/HEAD-RACING-270-HONDA-2.jpg?v=1764893753"},{"product_id":"🔥18cc-big-valve-genuine-honda-cylinder-head-for-gx160-gx200-clones","title":"🔥18cc Big Valve Genuine Honda Cylinder Head for GX160, GX200 \u0026 Clones","description":"\u003cstyle\u003e\n.footer-links { text-align: left; padding: 20px; margin: 30px 0; font-size: clamp(12px, 2.5vw, 16px); } .footer-links a { color: #000; text-decoration: none; font-weight: 700; margin: 0 10px; border-bottom: 2px solid #ffcc00; transition: all 0.3s; display: inline-block; } .footer-links a:hover { color: #ffcc00; }\n\u003c\/style\u003e\n\u003cdiv class=\"nonselectable\"\u003e\n\u003cdiv class=\"footer-links\"\u003e\n\u003ca href=\"https:\/\/gokartsusa.biz\/pages\/parts-for-powersports\"\u003e\u003c\/a\u003e\u003ca title=\"Cylinder Heads\" href=\"https:\/\/gokartsusa.biz\/collections\/cylinder-head-kart-racing\"\u003eHead\u003c\/a\u003e | \u003ca title=\"Guide\" href=\"https:\/\/gokartsusa.biz\/pages\/head-selection-guide\"\u003eGuide\u003c\/a\u003e | \u003ca title=\"Racing Engine Parts \" href=\"https:\/\/gokartsusa.biz\/collections\/go-kart-speed-parts\"\u003eHotrod\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003cul\u003e\n\u003cli\u003eBare cylinder head with 32mm valve seat installed and angle cut\u003c\/li\u003e\n\u003cli\u003e32\/25mm (2.640\" Long) stainless steel valves (lapped) included\u003c\/li\u003e\n\u003cli\u003eMachined for use with 37lb or dual springs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cbr\u003eWill fit Honda GX160, GX200, Predator 212 (hemi), Predator 224, Ducar and Tillotson 196\/212 engines.\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003ci\u003e*Note: This is a bare un-ported head. No springs, retainers, keepers, or lash caps included.\u003c\/i\u003e\u003c\/div\u003e","brand":"GoKarts USA®","offers":[{"title":"Do Not Mill","offer_id":43060113440827,"sku":"NR-Bare-Honda-18-3225","price":178.0,"currency_code":"USD","in_stock":true},{"title":"Mill Head .025\" [+$28]","offer_id":43060113473595,"sku":"NR-Bare-Honda-18-3225","price":206.0,"currency_code":"USD","in_stock":true},{"title":"Mill Head .050\" [+$28]","offer_id":43060113506363,"sku":"NR-Bare-Honda-18-3225","price":206.0,"currency_code":"USD","in_stock":true},{"title":"Mill Head .065\" [+$28]","offer_id":43060113539131,"sku":"NR-Bare-Honda-18-3225","price":206.0,"currency_code":"USD","in_stock":true},{"title":"Mill Head .080\" [+$28]","offer_id":43060113571899,"sku":"NR-Bare-Honda-18-3225","price":206.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/Bare-Honda-18-3225-2_8aeab479-e47e-4191-a9bd-5b095c4b5787.png?v=1764893753"},{"product_id":"speed-kit-for-gx390-13-15hp-ohv-engines-stage-3","title":"Speed Kit for GX390 \u0026 13\/15hp OHV Engines, Stage 3","description":"\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/pages\/speed-kit-selection-guide\" title=\"Speed Kit Selection Guide\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Kit Selection Guide\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA step up from our \u003c\/span\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/products\/speed-kit-gx340-to-gx390-420-predator-1315hp-ohv-stage-2\"\u003e\u003cb\u003eStage 2 kit\u003c\/b\u003e\u003c\/a\u003e\u003cspan\u003e, this is designed to wake up GX390s, allowing 20+ HP!\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eKit Includes:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRace\/Open Air Filter \u0026amp; Adapter\u003c\/li\u003e\n\u003cli\u003eHeavy Duty Valve Springs\u003c\/li\u003e\n\u003cli\u003eOffset Timing Key\u003c\/li\u003e\n\u003cli\u003e23.5mm Bored Honda Carburetor\u003c\/li\u003e\n\u003cli\u003e280 Lift Camshaft\u003c\/li\u003e\n\u003cli\u003eReinforced Rocker Arms\u003c\/li\u003e\n\u003cli\u003eBillet Rod (+.040 Longer)\u003c\/li\u003e\n\u003cli\u003eCarb and Side Cover Gaskets\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003eOptional \u003ca href=\"https:\/\/gokartsusa.biz\/collections\/gokart-minibike-racing-exhaust\"\u003eHeader\/Exhaust\u003c\/a\u003e\u003c\/i\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003eOptional Aluminum Flywheel\u003c\/i\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003e\u003cbr\u003e\u003cspan\u003e\u003ci\u003e*Note:\u003c\/i\u003e\u003c\/span\u003e\u003c\/b\u003e\u003cspan\u003e\u003ci\u003e Use of the choke bracket requires a stock Honda (or Chinese OHV) \"air filter-to-carb gasket\". This is not included in the kit. You can use the one that came with the motor.\u003c\/i\u003e\u003c\/span\u003e\u003cspan\u003e\u003ci\u003e\u003cbr\u003e\u003c\/i\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003ci\u003eBillet aluminum flywheel recommended. Stock flywheels, especially \"clones\", are prone to failure and are very dangerous.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eUT2 series\u003c\/strong\u003e Hondas (2012 \u0026amp; up) and later have a built-in rev limiter in the coil and will require a new coil to exceed 4000rpm. The UT2 coils (4 wire) can only be used with stock flywheels, and Billet 6693 Flywheel.\u003c\/i\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003ci\u003eIf using another billet flywheel, you must run a \u003cstrong\u003eUT1 style\u003c\/strong\u003e coil (single wire). 13\/15 Chinese engines (414, 420, and 460) usually have UT1 style coils already. However, some Lifans and 420s have a digital ignition and will need a Honda UT1 coil to run the billet flywheel.\u003cbr\u003e\u003cbr\u003ePicture is for reference only and may show optional parts. See above description for actual content.\u003cbr\u003e\u003cbr\u003eFilter should be sprayed with K\u0026amp;N type oil, especially for dirt applications.\u003c\/i\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"No Flywheel \/ No Coil","offer_id":43110534742075,"sku":"NR-STAGE3KIT392","price":395.0,"currency_code":"USD","in_stock":true},{"title":"No Flywheel \/ Add UT2 Coil without Rev Limiter for UT2 Honda","offer_id":43110534774843,"sku":"NR-STAGE3KIT390","price":465.0,"currency_code":"USD","in_stock":true},{"title":"No Flywheel \/ Add Genuine Honda UT1 Coil","offer_id":43110534807611,"sku":"NR-STAGE3KIT391","price":439.0,"currency_code":"USD","in_stock":true},{"title":"Add Aluminum Flywheel - Recoil Start \/ No Coil","offer_id":43110534840379,"sku":"NR-STAGE3KIT395","price":561.0,"currency_code":"USD","in_stock":true},{"title":"Add Aluminum Flywheel - Recoil Start \/ Add UT2 Coil without Rev Limiter for UT2 Honda","offer_id":43110534873147,"sku":"NR-STAGE3KIT393","price":631.0,"currency_code":"USD","in_stock":true},{"title":"Add Aluminum Flywheel - Recoil Start \/ Add Genuine Honda UT1 Coil","offer_id":43110534905915,"sku":"NR-STAGE3KIT394","price":605.0,"currency_code":"USD","in_stock":true},{"title":"Add Aluminum Flywheel - Electric Start \/ No Coil","offer_id":43110534938683,"sku":"NR-STAGE3KIT398","price":618.0,"currency_code":"USD","in_stock":true},{"title":"Add Aluminum Flywheel - Electric Start \/ Add UT2 Coil without Rev Limiter for UT2 Honda","offer_id":43110534971451,"sku":"NR-STAGE3KIT396","price":688.0,"currency_code":"USD","in_stock":true},{"title":"Add Aluminum Flywheel - Electric Start \/ Add Genuine Honda UT1 Coil","offer_id":43110535004219,"sku":"NR-STAGE3KIT397","price":662.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/STAGE3KIT390-2.png?v=1764893757"},{"product_id":"jet-kit-mikuni-22mm-small-body-round-slide-gx200-6-5-ohv","title":"Jet Kit, Mikuni, 22mm Small Body Round Slide, GX200 \u0026 6.5 OHV","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/collections\/go-kart-speed-parts\" title=\"Main Menu\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Parts\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePerformance parts for Honda GX, Predator, Tillotson and Briggs Animal engines for Go Kart and Mini Bike.\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"Default Title","offer_id":43060115308603,"sku":"NR-22MM-JET-KIT","price":9.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/22MM-JET-KIT-2_30cceca7-5801-48fe-9c10-e5ab7006279e.png?v=1764893758"},{"product_id":"jet-adjustable-needle-kit-gx200-gas","title":"Jet, Adjustable Needle, Kit, GX200, Gas","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/collections\/go-kart-speed-parts\" title=\"Main Menu\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Parts\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePerformance parts for Honda GX, Predator, Tillotson and Briggs Animal engines for Go Kart and Mini Bike.\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"Default Title","offer_id":43060115374139,"sku":"NR-ADJ-JET-200-G","price":32.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/ADJ-JET-200-G-2_8bffd65b-578c-41d6-b3f1-b2836706f379.png?v=1764893758"},{"product_id":"inserts-for-thread-repair-kit-10mm","title":"Inserts for Thread Repair Kit, 10mm","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/collections\/go-kart-speed-parts\" title=\"Main Menu\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Parts\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePerformance parts for Honda GX, Predator, Tillotson and Briggs Animal engines for Go Kart and Mini Bike.\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"Default Title","offer_id":43060115767355,"sku":"NR-91732A809","price":13.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/91732A809-2.jpg?v=1764893758"},{"product_id":"speed-kit-gx240-gx270-9hp-ohv-301-stage-4","title":"Speed Kit; GX240, GX270, 9hp OHV, \u0026 301; Stage 4","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/pages\/speed-kit-selection-guide\" title=\"Speed Kit Selection Guide\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Kit Selection Guide\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003eFor building a serious a GX270 or 301, the Stage 4 kit starts with a package similar to that of the\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eStage 3\u003c\/b\u003e, but adds a ported and milled head with stainless valves, a stud kit, and heavy duty valve train components.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cb\u003eKit Includes:\u003c\/b\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eFully Ported and Milled Race Head\u003c\/li\u003e\n\u003cli\u003e270 Clone Head\u003cspan\u003e \u003c\/span\u003e\u003ci\u003e(Genuine Honda available upon request for additional cost)\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh Flow 32mm \/ 28mm Valves with Lash Caps\u003c\/li\u003e\n\u003cli\u003eDual Springs with Titanium Retainers\u003c\/li\u003e\n\u003cli\u003e306 Race Cam\u003c\/li\u003e\n\u003cli\u003eBlack Venom Roller Rockers\u003c\/li\u003e\n\u003cli\u003eValve Cover Spacer\u003c\/li\u003e\n\u003cli\u003eChrome Moly Pushrods\u003c\/li\u003e\n\u003cli\u003eFlat Top Piston\u003c\/li\u003e\n\u003cli\u003eChoice of Carbs\u003ci\u003e\u003cspan\u003e \u003c\/span\u003e(Or use your own)\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003eBillet Rod\u003cspan\u003e \u003c\/span\u003e\u003ci\u003e(+.020\" Longer)\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003eOffset Timing Key\u003c\/li\u003e\n\u003cli\u003eCarb, Head, \u0026amp; Case Gaskets\u003c\/li\u003e\n\u003cli\u003eARP Bolt Kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e*Note:\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003ePicture is for reference only. See above description for actual content.\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eThese kits are intended for experienced engine builders. Some clearance, fitment, or other engine building \"tricks\" may be needed. \u003c\/span\u003e\u003cspan\u003eBillet aluminum flywheel REQUIRED.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003e\u003cbr\u003eUT2s series Hondas (2012 \u0026amp; up) or later have a built in rev limiter in the coil and will require a new coil to exceed 4000rpm. The UT2 coils (4 wire) can only be used with stock flywheels. If using a billet flywheel, you must run a UT1 style coil (single wire). \u003c\/span\u003e\u003cspan\u003eChinese engines usually have UT1 style coils already. However, some Lifans and 420s have a digital ignition and will need a Honda UT1 coil to run the billet flywheel.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cbr\u003eIf ordering for a 301, be aware that some engines have large cam journals (.6357), and most 301s have standard cam journals (same as GX270s). If you have a 301, we recommend you measure your cam journals before ordering this. (If in doubt, order the small journal.)\u003c\/span\u003e\u003c\/div\u003e","brand":"GoKarts USA®","offers":[{"title":"No Carburetor \/ No Flywheel","offer_id":43110533333051,"sku":"NR-STAGE4KIT270","price":845.0,"currency_code":"USD","in_stock":true},{"title":"No Carburetor \/ Billet Aluminum Flywheel (GX240 \u0026 GX270)","offer_id":43110533365819,"sku":"NR-STAGE4KIT270","price":1065.0,"currency_code":"USD","in_stock":true},{"title":"24mm Bored 3-Circuit Carb Gas with Filter Assembly \/ No Flywheel","offer_id":43110533398587,"sku":"NR-STAGE4KIT270","price":936.0,"currency_code":"USD","in_stock":true},{"title":"24mm Bored 3-Circuit Carb Gas with Filter Assembly \/ Billet Aluminum Flywheel (GX240 \u0026 GX270)","offer_id":43110533431355,"sku":"NR-STAGE4KIT270","price":936.0,"currency_code":"USD","in_stock":true},{"title":"28mm Gas Black Round Slide \/ No Flywheel","offer_id":43110533464123,"sku":"NR-STAGE4KIT270","price":998.0,"currency_code":"USD","in_stock":true},{"title":"28mm Gas Black Round Slide \/ Billet Aluminum Flywheel (GX240 \u0026 GX270)","offer_id":43110533496891,"sku":"NR-STAGE4KIT270","price":998.0,"currency_code":"USD","in_stock":true},{"title":"28mm Flat Slide Mikuni - Gas \/ No Flywheel","offer_id":43110533529659,"sku":"NR-STAGE4KIT270","price":1113.0,"currency_code":"USD","in_stock":true},{"title":"28mm Flat Slide Mikuni - Gas \/ Billet Aluminum Flywheel (GX240 \u0026 GX270)","offer_id":43110533562427,"sku":"NR-STAGE4KIT270","price":1333.0,"currency_code":"USD","in_stock":true},{"title":"28mm Flat Slide Mikuni - Methanol \/ No Flywheel","offer_id":43110533595195,"sku":"NR-STAGE4KIT270","price":1085.0,"currency_code":"USD","in_stock":true},{"title":"28mm Flat Slide Mikuni - Methanol \/ Billet Aluminum Flywheel (GX240 \u0026 GX270)","offer_id":43110533627963,"sku":"NR-STAGE4KIT270","price":1305.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/STAGE4KIT270-2.png?v=1764893759"},{"product_id":"hilliard-inferno-flame-tuning-kit","title":"Hilliard Inferno Flame Tuning Kit","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/collections\/go-kart-speed-parts\" title=\"Main Menu\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Parts\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePerformance parts for Honda GX, Predator, Tillotson and Briggs Animal engines for Go Kart and Mini Bike.\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"Default Title","offer_id":43060115931195,"sku":"NR-HDC-BZTK","price":84.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/HDC-BZTK-2.jpg?v=1764893759"},{"product_id":"speed-kit-for-honda-gx390-racing-karts-choose-options-stage-4","title":"Speed Kit For Honda GX390 Racing Karts - (Choose Options) Stage 4","description":"\u003cdiv\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/pages\/speed-kit-selection-guide\" title=\"Speed Kit Selection Guide\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Kit Selection Guide\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003eThe Stage 4 kit starts with a package similar to that of the\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eStage \u003c\/b\u003e\u003cb\u003e3\u003c\/b\u003e, but adds a ported and milled head with stainless valves, a stud kit, and heavy duty valve train components. Allows up to 35+ HP out of a GX390.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cb\u003eKit Includes:\u003c\/b\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003eFully Ported and Milled Race Head\u003c\/li\u003e\n\u003cli\u003eHigh-Torque Genuine Honda Core\u003cspan\u003e \u003c\/span\u003e\u003ci\u003e(The Best!!)\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh-Flow 36mm \/ 31mm Valves with Lash Caps\u003c\/li\u003e\n\u003cli\u003eDual Springs with Titanium Retainers\u003c\/li\u003e\n\u003cli\u003e307 Race Cam\u003c\/li\u003e\n\u003cli\u003eBlack Venom Aluminum Roller Rockers\u003c\/li\u003e\n\u003cli\u003eValve Cover Spacer\u003c\/li\u003e\n\u003cli\u003eChrome Moly Pushrods\u003c\/li\u003e\n\u003cli\u003eChoice of Carbs\u003cspan\u003e \u003c\/span\u003e\u003ci\u003e(Or use your own)\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003e88mm Forged Flat-Top Piston with Rings\u003c\/li\u003e\n\u003cli\u003eBillet Rod (+.040\" Longer)\u003c\/li\u003e\n\u003cli\u003eOffset Timing Key\u003c\/li\u003e\n\u003cli\u003eCarb, Insulator, Head, and Case Gaskets\u003c\/li\u003e\n\u003cli\u003eARP Bolt Kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e*Note:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eThis kit only fits 389cc (88mm) engines. Kit is intended for experienced engine builders. Some clearancing, fitment, or other engine building \"tricks\" may be needed. Picture is for reference only. See above description for actual content. Filter should be sprayed with K\u0026amp;N type oil, especially in dirt applications. Billet aluminum flywheel required.\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eUT2 series Hondas (2012 \u0026amp; up) or later have a built-in rev limiter in the coil and will require a new coil to exceed 4000rpm. The UT2 coils (4 wire) can only be used with stock flywheels, and 6693 billet flywheel. If using another billet flywheel, you must run a UT1 style coil (single wire).\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e13\/15 Chinese engines (414, 420, 460) usually have UT1 style coils already. However, some Lifans and 420s have a digital ignition and will need a Honda UT1 coil to run the billet flywheel.\u003cbr\u003e\u003cbr\u003e\u003ci\u003e\u003c\/i\u003e\u003c\/span\u003e\u003cspan\u003e\u003ci\u003eDue to the head work required for this kit, please allow 1 week to ship.\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/div\u003e","brand":"GoKarts USA®","offers":[{"title":"No Carburetor (Customer to Supply Carb) \/ No Flywheel","offer_id":43060116062267,"sku":"NR-STAGE4KIT390","price":1110.0,"currency_code":"USD","in_stock":true},{"title":"No Carburetor (Customer to Supply Carb) \/ Add Aluminum Flywheel - Recoil Start","offer_id":43060116095035,"sku":"NR-STAGE4KIT390","price":1345.0,"currency_code":"USD","in_stock":true},{"title":"No Carburetor (Customer to Supply Carb) \/ Add Aluminum Flywheel - Electric Start","offer_id":43060116127803,"sku":"NR-STAGE4KIT390","price":1403.0,"currency_code":"USD","in_stock":true},{"title":"34mm Round Slide Mikuni - Gas \/ No Flywheel","offer_id":43060116160571,"sku":"NR-STAGE4KIT390","price":1373.0,"currency_code":"USD","in_stock":true},{"title":"34mm Round Slide Mikuni - Gas \/ Add Aluminum Flywheel - Recoil Start","offer_id":43060116193339,"sku":"NR-STAGE4KIT390","price":1539.0,"currency_code":"USD","in_stock":true},{"title":"34mm Round Slide Mikuni - Gas \/ Add Aluminum Flywheel - Electric Start","offer_id":43060116226107,"sku":"NR-STAGE4KIT390","price":1596.0,"currency_code":"USD","in_stock":true},{"title":"34mm Flat Slide Mikuni Gas \/ No Flywheel","offer_id":43060116258875,"sku":"NR-STAGE4KIT390","price":1413.0,"currency_code":"USD","in_stock":true},{"title":"34mm Flat Slide Mikuni Gas \/ Add Aluminum Flywheel - Recoil Start","offer_id":43060116291643,"sku":"NR-STAGE4KIT390","price":1579.0,"currency_code":"USD","in_stock":true},{"title":"34mm Flat Slide Mikuni Gas \/ Add Aluminum Flywheel - Electric Start","offer_id":43060116324411,"sku":"NR-STAGE4KIT390","price":1636.0,"currency_code":"USD","in_stock":true},{"title":"33mm Mikuni Pumper Gas \/ No Flywheel","offer_id":43060116357179,"sku":"NR-STAGE4KIT390","price":1515.0,"currency_code":"USD","in_stock":true},{"title":"33mm Mikuni Pumper Gas \/ Add Aluminum Flywheel - Recoil Start","offer_id":43060116389947,"sku":"NR-STAGE4KIT390","price":1681.0,"currency_code":"USD","in_stock":true},{"title":"33mm Mikuni Pumper Gas \/ Add Aluminum Flywheel - Electric Start","offer_id":43060116422715,"sku":"NR-STAGE4KIT390","price":1738.0,"currency_code":"USD","in_stock":true},{"title":"33mm Mikuni Pumper Methanol \/ No Flywheel","offer_id":43060116455483,"sku":"NR-STAGE4KIT390","price":1621.0,"currency_code":"USD","in_stock":true},{"title":"33mm Mikuni Pumper Methanol \/ Add Aluminum Flywheel - Recoil Start","offer_id":43060116488251,"sku":"NR-STAGE4KIT390","price":1787.0,"currency_code":"USD","in_stock":true},{"title":"33mm Mikuni Pumper Methanol \/ Add Aluminum Flywheel - Electric Start","offer_id":43060116521019,"sku":"NR-STAGE4KIT390","price":1844.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/STAGE4KIT390-2_534ed30b-4a1c-4a60-94df-c894091562cd.png?v=1764893759"},{"product_id":"speed-kit-212-predator-hemi-choose-options-stage-4","title":"Speed Kit, 212 Predator Hemi - Stage 4  (Choose Options)","description":"\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/pages\/speed-kit-selection-guide\" title=\"Speed Kit Selection Guide\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Kit Selection Guide\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor serious engine builders looking for great power and good reliability, we offer our Stage 4 kit! This package is similar to our \u003c\/span\u003e\u003cb\u003eStage 3\u003c\/b\u003e\u003cspan\u003e, but adds a ported and milled hemi head, stainless steel valves, billet rockers, and a great all-around camshaft package. Allows up to 20hp or more!\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eKit Includes:\u003cbr\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePorted and Milled Head\u003c\/li\u003e\n\u003cli\u003eApproximately 10:1 Compression Ratio for Use with Pump Gas\u003c\/li\u003e\n\u003cli\u003eStainless Steel, High-Flow 28mm Intake and 25mm Exhaust Valves\u003c\/li\u003e\n\u003cli\u003e37lb Springs\u003c\/li\u003e\n\u003cli\u003e1.2 Ratio Billet Steel Rocker Arms\u003c\/li\u003e\n\u003cli\u003eChrome Moly Pushrods\u003c\/li\u003e\n\u003cli\u003e280-0611 Camshaft\u003c\/li\u003e\n\u003cli\u003eStud Kit\u003c\/li\u003e\n\u003cli\u003eLash Caps\u003c\/li\u003e\n\u003cli\u003eLong Billet Rod (+.020\")\u003c\/li\u003e\n\u003cli\u003eComplete Gasket Kit\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003eCarburetor Option\u003c\/i\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003eOptional Flywheel\u003c\/i\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ci\u003e\u003cbr\u003e\u003cb\u003e*Note:\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003eThis kit will not fit non-hemi Predator engines. Please see our\u003cspan\u003e \u003c\/span\u003e\u003cb\u003enon-hemi kits\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003efor those applications. These kits are intended for experienced engine builders. Some clearancing, fitting, and other engine building \"tricks\" may be necessary. Filter should be sprayed with K\u0026amp;N type oil, especially for dirt applications. Picture is for reference only. Actual content is based on above description and selections. The flywheel shown is optional.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAluminum flywheel required.\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eStock flywheels are prone to failure and are very dangerous!\u003cbr\u003e\u003cbr\u003eDue to the head work involved in this kit, please allow 1 week before shipping.\u003c\/i\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"No Carburetor (Customer to Supply Carb) \/ No Flywheel","offer_id":43060117405755,"sku":"NR-STAGE4HOPUP-PH-1","price":453.0,"currency_code":"USD","in_stock":true},{"title":"No Carburetor (Customer to Supply Carb) \/ Add 6600 PVL Flywheel with Digital Coil Hemi","offer_id":43060117438523,"sku":"NR-STAGE4HOPUP-PH-2","price":786.0,"currency_code":"USD","in_stock":true},{"title":"No Carburetor (Customer to Supply Carb) \/ Add Super Light 6602 with Small Fan Hemi","offer_id":43060117471291,"sku":"NR-STAGE4HOPUP-PH-3","price":592.0,"currency_code":"USD","in_stock":true},{"title":"22mm Mikuni - Gas \/ No Flywheel","offer_id":43060117504059,"sku":"NR-STAGE4HOPUP-PH-4","price":547.0,"currency_code":"USD","in_stock":true},{"title":"22mm Mikuni - Gas \/ Add 6600 PVL Flywheel with Digital Coil Hemi","offer_id":43060117536827,"sku":"NR-STAGE4HOPUP-PH-5","price":786.0,"currency_code":"USD","in_stock":true},{"title":"22mm Mikuni - Gas \/ Add Super Light 6602 with Small Fan Hemi","offer_id":43060117569595,"sku":"NR-STAGE4HOPUP-PH-6","price":592.0,"currency_code":"USD","in_stock":true},{"title":"24mm Flat Slide Mikuni - Gas \/ No Flywheel","offer_id":43060117602363,"sku":"NR-STAGE4HOPUP-PH-7","price":658.0,"currency_code":"USD","in_stock":true},{"title":"24mm Flat Slide Mikuni - Gas \/ Add 6600 PVL Flywheel with Digital Coil Hemi","offer_id":43060117635131,"sku":"NR-STAGE4HOPUP-PH-8","price":991.0,"currency_code":"USD","in_stock":true},{"title":"24mm Flat Slide Mikuni - Gas \/ Add Super Light 6602 with Small Fan Hemi","offer_id":43060117667899,"sku":"NR-STAGE4HOPUP-PH-9","price":797.0,"currency_code":"USD","in_stock":true},{"title":"28mm Gas Black Round Slide \/ No Flywheel","offer_id":43060117700667,"sku":"NR-STAGE4HOPUP-PH-10","price":599.0,"currency_code":"USD","in_stock":true},{"title":"28mm Gas Black Round Slide \/ Add 6600 PVL Flywheel with Digital Coil Hemi","offer_id":43060117733435,"sku":"NR-STAGE4HOPUP-PH-11","price":932.0,"currency_code":"USD","in_stock":true},{"title":"28mm Gas Black Round Slide \/ Add Super Light 6602 with Small Fan Hemi","offer_id":43060117766203,"sku":"NR-STAGE4HOPUP-PH-12","price":738.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/STAGE4HOPUP-PH-2.png?v=1764893769"},{"product_id":"speed-kit-212-predator-ohv-non-hemi-stage-3","title":"Speed Kit, 212 Predator OHV (Non-Hemi), Stage 3","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca style=\"background-color: rgb(255, 255, 0);\" title=\"Speed Kit Selection Guide\" href=\"https:\/\/gokartsusa.biz\/pages\/speed-kit-selection-guide\"\u003eSpeed Kit Selection Guide\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eNow you are getting serious! A step up from our \u003c\/span\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/products\/hop-up-kit-212-predator-ohv-non-hemi-stage-2\"\u003e\u003cb\u003eStage 2 kit\u003c\/b\u003e\u003c\/a\u003e\u003cspan\u003e, we add a racing camshaft, a 22mm carb, and a billet rod. Kit produces 13-15hp or more.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eKit Includes:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e22mm Mikuni Style Carb Kit\u003c\/li\u003e\n\u003cli\u003eChoice of Cams (\u003cstrong\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/products\/252-rattlesnake-camshaft-for-gx200-65-clone-predator\"\u003eRattlesnake\u003c\/a\u003e \u003c\/strong\u003eor \u003cstrong\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/products\/252-series-approximately-252-lift-and-230-degrees-duration-at-050\"\u003eNR 252-0607\u003c\/a\u003e\u003c\/strong\u003e)\u003c\/li\u003e\n\u003cli\u003e22lb or 26lb Springs\u003cspan\u003e \u003c\/span\u003e\u003ci\u003e(Depending on camshaft)\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003eBillet Aluminum Flywheel\u003c\/li\u003e\n\u003cli\u003eBillet Rod (+.020\")\u003c\/li\u003e\n\u003cli\u003eAll Necessary Gaskets\u003cspan\u003e \u003c\/span\u003e\u003ci\u003e(Head gasket not included)\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003eOptional \u003ca href=\"https:\/\/gokartsusa.biz\/collections\/gokart-minibike-racing-exhaust\"\u003eHeader\/Exhaust\u003c\/a\u003e\u003c\/i\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003e252 Cam Package Includes:\u003c\/b\u003e\u003cspan\u003e Camshaft, 26lb Springs, Chrome Moly Pushrods, and Reinforced Rocker Arms\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eRattlesnake Cam Package Includes:\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003e\u003cspan\u003eCam and 22lb Springs ONLY\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003ci\u003e\u003cspan\u003e\u003cb\u003e*Note: \u003c\/b\u003eTo get maximum power, head should be ported and\/or milled.\u003cbr\u003eThis fits non-hemi Predators: Model 69730 [R210] that came with Stamped Steel Valve Cover. It does not fit hemi Predators: Model 60363 [210FA] that came with Cast Aluminum Valve Cover.\u003c\/span\u003e\u003c\/i\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ci\u003e\u003cspan\u003ePictures are for reference only. Please see above description for actual content. Parts may be different than pictures, depending on which motor and options are selected.\u003cbr\u003eFilter should be sprayed with K\u0026amp;N type oil, especially in dirt applications. Oil is not included \u003c\/span\u003e\u003c\/i\u003e\u003cbr\u003e\u003cspan\u003e\u003ci\u003e\u003c\/i\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003ci\u003eWARNING: Optional header\/pipe should be supported with a bracket\/brace to either the frame or the engine; otherwise, pipe may fracture or break.\u003c\/i\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"Rattlesnake Cam Package (OHV Predator)","offer_id":43110534676539,"sku":"NR-STAGE3HOPUP-P","price":323.0,"currency_code":"USD","in_stock":true},{"title":"252-0607 Cam Package (OHV Predator)","offer_id":43110534709307,"sku":"NR-STAGE3HOPUP-P","price":397.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/STAGE3HOPUP-P-2.png?v=1764893771"},{"product_id":"jet-kit-main-pz26-gas","title":"Jet Kit, Main, PZ26, Gas","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/collections\/go-kart-speed-parts\" title=\"Main Menu\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Parts\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePerformance parts for Honda GX, Predator, Tillotson and Briggs Animal engines for Go Kart and Mini Bike.\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"Default Title","offer_id":43060122058811,"sku":"NR-557012","price":65.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/557012-2_b2b6827c-76be-45a4-897b-f23491088e5d.png?v=1764893774"},{"product_id":"ready-to-go-race-head-for-gx390-with-genuine-honda-core","title":"Ready-to-Go Race Head for GX390 with Genuine Honda Core","description":"\u003cstyle\u003e\n.footer-links { text-align: left; padding: 20px; margin: 30px 0; font-size: clamp(12px, 2.5vw, 16px); } .footer-links a { color: #000; text-decoration: none; font-weight: 700; margin: 0 10px; border-bottom: 2px solid #ffcc00; transition: all 0.3s; display: inline-block; } .footer-links a:hover { color: #ffcc00; }\n\u003c\/style\u003e\n\u003cdiv class=\"nonselectable\"\u003e\n\u003cdiv class=\"footer-links\"\u003e\n\u003ca href=\"https:\/\/gokartsusa.biz\/pages\/parts-for-powersports\"\u003e\u003c\/a\u003e\u003ca title=\"Cylinder Heads\" href=\"https:\/\/gokartsusa.biz\/collections\/cylinder-head-kart-racing\"\u003eHead\u003c\/a\u003e | \u003ca title=\"Guide\" href=\"https:\/\/gokartsusa.biz\/pages\/head-selection-guide\"\u003eGuide\u003c\/a\u003e | \u003ca title=\"Racing Engine Parts\" href=\"https:\/\/gokartsusa.biz\/collections\/go-kart-speed-parts\"\u003eHotrod\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003eThis head uses a Genuine Honda core for better flow, less porosity, and higher strength than aftermarket heads. Head may be fitted with either single or dual springs. Single springs are recommended for 306 and smaller cams; duals are recommended for 307 and larger.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cb\u003eGX390 heads have the options of 36mm or 40mm intakes.\u003c\/b\u003e\u003cbr\u003e\u003cspan\u003e*GX390 heads will fit GX340s.\u003c\/span\u003e\u003cbr\u003e\u003cb\u003e\u003cbr\u003eWe offer heads in two port sizes:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e\"Small Port, Torquer\"\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003euses small port castings to increase velocity and maximize low-end power at some loss of high-end RPM. These are the best choice for most applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e\"Large Port, High RPM\"\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003euses large port castings to increase high-end RPM power at some loss of low-end torque and reduced throttle response. They may provide increased cooling for endurance applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eProduct Includes:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePorted and bead blasted head, milled to specs\u003c\/li\u003e\n\u003cli\u003eStainless intake and exhaust valves\u003c\/li\u003e\n\u003cli\u003eAluminum or titanium retainers\u003c\/li\u003e\n\u003cli\u003eSplit keepers\u003c\/li\u003e\n\u003cli\u003eHD single or dual springs\u003c\/li\u003e\n\u003cli\u003eValve spring shims\u003c\/li\u003e\n\u003cli\u003e3-Angle valve job\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003e*Note:\u003c\/b\u003e\u003cspan\u003e Heads are typically built to order. Please allow approximately 1-5 days before shipping.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eGX390 heads have the options of 36mm or 40mm intakes.\u003c\/b\u003e\u003cbr\u003e\u003cspan\u003e*GX390 heads will fit GX340s.\u003c\/span\u003e\u003cbr\u003e\u003cb\u003e\u003cbr\u003eWe offer heads in two port sizes:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003e\"Small Port, Torquer\"\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003euses small port castings to increase velocity and maximize low-end power at some loss of high-end RPM. These are the best choice for most applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003e\"Large Port, High RPM\"\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003euses large port castings to increase high-end RPM power at some loss of low-end torque and reduced throttle response. They may provide increased cooling for endurance applications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eProduct Includes:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePorted and bead blasted head, milled to specs\u003c\/li\u003e\n\u003cli\u003eStainless intake and exhaust valves\u003c\/li\u003e\n\u003cli\u003eAluminum or titanium retainers\u003c\/li\u003e\n\u003cli\u003eSplit keepers\u003c\/li\u003e\n\u003cli\u003eHD single or dual springs\u003c\/li\u003e\n\u003cli\u003eValve spring shims\u003c\/li\u003e\n\u003cli\u003e3-Angle valve job\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003e*Note:\u003c\/b\u003e\u003cspan\u003e Heads are typically built to order. Please allow approximately 1-5 days before shipping.\u003c\/span\u003e\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"36 Intake 32 Single Alum Retainers \/ Do Not Mill","offer_id":43060123926587,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":279.0,"currency_code":"USD","in_stock":true},{"title":"36 Intake 32 Single Alum Retainers \/ Mill Head .025\"","offer_id":43060123959355,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":279.0,"currency_code":"USD","in_stock":true},{"title":"36 Intake 32 Single Alum Retainers \/ Mill Head .050\"","offer_id":43060123992123,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":279.0,"currency_code":"USD","in_stock":true},{"title":"36 Intake 32 Single Alum Retainers \/ Mill Head .065\"","offer_id":43060124024891,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":279.0,"currency_code":"USD","in_stock":true},{"title":"36 Intake 32 Single Alum Retainers \/ Mill Head .080\"","offer_id":43060124057659,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":279.0,"currency_code":"USD","in_stock":true},{"title":"36 Intake 32 Single Alum Retainers \/ Mill Head .100\"","offer_id":43060124090427,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":279.0,"currency_code":"USD","in_stock":true},{"title":"36 Intake 32 Single Alum Retainers \/ Mill Head .120\" **","offer_id":43060124123195,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":279.0,"currency_code":"USD","in_stock":true},{"title":"36 Intake 32 Dual Springs Alum Retainers [+$4] \/ Do Not Mill","offer_id":43060124155963,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":383.0,"currency_code":"USD","in_stock":true},{"title":"36 Intake 32 Dual Springs Alum Retainers [+$4] \/ Mill Head .025\"","offer_id":43060124188731,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":383.0,"currency_code":"USD","in_stock":true},{"title":"36 Intake 32 Dual Springs Alum Retainers [+$4] \/ Mill Head .050\"","offer_id":43060124221499,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":383.0,"currency_code":"USD","in_stock":true},{"title":"36 Intake 32 Dual Springs Alum Retainers [+$4] \/ Mill Head .065\"","offer_id":43060124254267,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":383.0,"currency_code":"USD","in_stock":true},{"title":"36 Intake 32 Dual Springs Alum Retainers [+$4] \/ Mill Head .080\"","offer_id":43060124287035,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":383.0,"currency_code":"USD","in_stock":true},{"title":"36 Intake 32 Dual Springs Alum Retainers [+$4] \/ Mill Head .100\"","offer_id":43060124319803,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":383.0,"currency_code":"USD","in_stock":true},{"title":"36 Intake 32 Dual Springs Alum Retainers [+$4] \/ Mill Head .120\" **","offer_id":43060124352571,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":383.0,"currency_code":"USD","in_stock":true},{"title":"36 Intake 3 Dual Springs Titan Retainers [+$34] \/ Do Not Mill","offer_id":43060124385339,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":313.0,"currency_code":"USD","in_stock":true},{"title":"36 Intake 3 Dual Springs Titan Retainers [+$34] \/ Mill Head .025\"","offer_id":43060124418107,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":313.0,"currency_code":"USD","in_stock":true},{"title":"36 Intake 3 Dual Springs Titan Retainers [+$34] \/ Mill Head .050\"","offer_id":43060124450875,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":313.0,"currency_code":"USD","in_stock":true},{"title":"36 Intake 3 Dual Springs Titan Retainers [+$34] \/ Mill Head .065\"","offer_id":43060124483643,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":313.0,"currency_code":"USD","in_stock":true},{"title":"36 Intake 3 Dual Springs Titan Retainers [+$34] \/ Mill Head .080\"","offer_id":43060124516411,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":313.0,"currency_code":"USD","in_stock":true},{"title":"36 Intake 3 Dual Springs Titan Retainers [+$34] \/ Mill Head .100\"","offer_id":43060124549179,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":313.0,"currency_code":"USD","in_stock":true},{"title":"36 Intake 3 Dual Springs Titan Retainers [+$34] \/ Mill Head .120\" **","offer_id":43060124581947,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":313.0,"currency_code":"USD","in_stock":true},{"title":"40 Intake 32 Dual Springs Alum Retainers [+$61] \/ Do Not Mill","offer_id":43060124614715,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":340.0,"currency_code":"USD","in_stock":true},{"title":"40 Intake 32 Dual Springs Alum Retainers [+$61] \/ Mill Head .025\"","offer_id":43060124647483,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":340.0,"currency_code":"USD","in_stock":true},{"title":"40 Intake 32 Dual Springs Alum Retainers [+$61] \/ Mill Head .050\"","offer_id":43060124680251,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":340.0,"currency_code":"USD","in_stock":true},{"title":"40 Intake 32 Dual Springs Alum Retainers [+$61] \/ Mill Head .065\"","offer_id":43060124713019,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":340.0,"currency_code":"USD","in_stock":true},{"title":"40 Intake 32 Dual Springs Alum Retainers [+$61] \/ Mill Head .080\"","offer_id":43060124745787,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":340.0,"currency_code":"USD","in_stock":true},{"title":"40 Intake 32 Dual Springs Alum Retainers [+$61] \/ Mill Head .100\"","offer_id":43060124778555,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":340.0,"currency_code":"USD","in_stock":true},{"title":"40 Intake 32 Dual Springs Alum Retainers [+$61] \/ Mill Head .120\" **","offer_id":43060124811323,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":340.0,"currency_code":"USD","in_stock":true},{"title":"40 Intake 32 Dual Springs Titan Retainers [+$88] \/ Do Not Mill","offer_id":43060124844091,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":367.0,"currency_code":"USD","in_stock":true},{"title":"40 Intake 32 Dual Springs Titan Retainers [+$88] \/ Mill Head .025\"","offer_id":43060124876859,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":367.0,"currency_code":"USD","in_stock":true},{"title":"40 Intake 32 Dual Springs Titan Retainers [+$88] \/ Mill Head .050\"","offer_id":43060124909627,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":367.0,"currency_code":"USD","in_stock":true},{"title":"40 Intake 32 Dual Springs Titan Retainers [+$88] \/ Mill Head .065\"","offer_id":43060124942395,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":367.0,"currency_code":"USD","in_stock":true},{"title":"40 Intake 32 Dual Springs Titan Retainers [+$88] \/ Mill Head .080\"","offer_id":43060124975163,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":367.0,"currency_code":"USD","in_stock":true},{"title":"40 Intake 32 Dual Springs Titan Retainers [+$88] \/ Mill Head .100\"","offer_id":43060125007931,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":367.0,"currency_code":"USD","in_stock":true},{"title":"40 Intake 32 Dual Springs Titan Retainers [+$88] \/ Mill Head .120\" **","offer_id":43060125040699,"sku":"NR-HEAD-RACING-GX390-HONDA-SMALL","price":367.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/HEAD-RACING-GX390-HONDA-SMALL-2.jpg?v=1764893774"},{"product_id":"speed-kit-212-predator-hemi-stage-1","title":"Speed Kit, 212 Predator Hemi, Stage 1","description":"\u003cdiv\u003e\u003cspan\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/pages\/speed-kit-selection-guide\" title=\"Speed Kit Selection Guide\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Kit Selection Guide\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eBasic kit for improving the performance of 212 Hemi Predator engines. Simple to install, you can expect significant performance increases. Approximately 10+ HP.\u003c\/span\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cb\u003e\u003cbr\u003eKit Includes:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eRace\/Open Air Filter \u0026amp; Adapter\u003cbr\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eChoke Bracket\u003cbr\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eCorrect Jet for Application \u003ci\u003e(*see notes below*)\u003c\/i\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eUpgraded Valve Springs (18 or 22lb)\u003cbr\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eValve Cover Gasket\u003cbr\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eChoice of Small Fan or Aluminum Flywheel\u003cbr\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eOffset Timing Key\u003cbr\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003e\u003ci\u003e\u003c\/i\u003e\u003c\/span\u003e\u003cspan\u003e\u003ci\u003eOptional Header\/Exhaust\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003eManufacturers have been known to use different jets on the same models, so it is important to know the stock jet size!\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cbr\u003e*Picture is for reference only and may show optional parts. See above description for actual content. Parts may be different than pictures, depending on which motor and options are selected. (When selecting the aluminum flywheel, the small fan is not included nor needed). Head gasket is not included.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cbr\u003eFilter should be sprayed with a K\u0026amp;N type oil, especially in dirt applications. Oil not included\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cbr\u003eAluminum or Honda flywheel recommended. Stock flywheels, especially \"clones\", are prone to failure and are very dangerous!\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cbr\u003eWARNING: Header\/pipe should be supported with a bracket\/brace to either the frame or the engine; otherwise, pipe may fracture or break.\u003c\/span\u003e\u003c\/div\u003e","brand":"GoKarts USA®","offers":[{"title":"Kit with Small Fan and Offset Key (S1-PH) \/ No Exhaust","offer_id":43110536609851,"sku":"NR-STAGE1HOPUP-PH","price":49.0,"currency_code":"USD","in_stock":true},{"title":"Kit with Small Fan and Offset Key (S1-PH) \/ Add Header- Kart","offer_id":43110536642619,"sku":"NR-STAGE1HOPUP-PH","price":82.0,"currency_code":"USD","in_stock":true},{"title":"Kit with Small Fan and Offset Key (S1-PH) \/ Add Header- Mini Bike","offer_id":43110536675387,"sku":"NR-STAGE1HOPUP-PH","price":79.0,"currency_code":"USD","in_stock":true},{"title":"Kit with Aluminum Flywheel (Dyno PVL for Hemi) \/ No Exhaust","offer_id":43110536708155,"sku":"NR-STAGE1HOPUP-PH","price":117.0,"currency_code":"USD","in_stock":true},{"title":"Kit with Aluminum Flywheel (Dyno PVL for Hemi) \/ Add Header- Kart","offer_id":43110536740923,"sku":"NR-STAGE1HOPUP-PH","price":149.0,"currency_code":"USD","in_stock":true},{"title":"Kit with Aluminum Flywheel (Dyno PVL for Hemi) \/ Add Header- Mini Bike","offer_id":43110536773691,"sku":"NR-STAGE1HOPUP-PH","price":147.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/STAGE1HOPUP-PH-2.png?v=1764893774"},{"product_id":"speed-kit-212-predator-ohv-non-hemi-stage-4","title":"Speed Kit, 212 Predator OHV (Non-Hemi), Stage 4","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/pages\/speed-kit-selection-guide\" title=\"Speed Kit Selection Guide\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Kit Selection Guide\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor serious engine builders looking for great power and good reliability, we offer our Stage 4 kit. This package is similar to that of the \u003c\/span\u003e\u003cb\u003eStage \u003c\/b\u003e\u003cb\u003e3\u003c\/b\u003e\u003cb\u003e kit\u003c\/b\u003e\u003cspan\u003e, but adds a ported and milled head, stainless valves, billet rockers, a flat-top piston, and a great all-around cam package.\u003c\/span\u003e\u003cbr\u003e\u003cb\u003e\u003cbr\u003eKit Includes:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003ePorted \u0026amp; Milled Clone 22cc Head\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eApproximately 11:1 Compression Ratio for Use with Pump Gas\u003c\/li\u003e\n\u003cli\u003eStainless High-flow 27mm Intake \u0026amp; 24mm Exhaust\u003c\/li\u003e\n\u003cli\u003e37lb Springs\u003c\/li\u003e\n\u003cli\u003e1.2 Ratio Billet Rocker Arms\u003c\/li\u003e\n\u003cli\u003eChrome Moly Pushrods\u003c\/li\u003e\n\u003cli\u003e280-0611 Camshaft\u003c\/li\u003e\n\u003cli\u003eStud Kit\u003c\/li\u003e\n\u003cli\u003eLash Caps\u003c\/li\u003e\n\u003cli\u003eLong Billet Rod (+.020\")\u003c\/li\u003e\n\u003cli\u003eFlat-Top Piston\u003c\/li\u003e\n\u003cli\u003ePiston Rings, Wrist Pin, and Clips\u003c\/li\u003e\n\u003cli\u003eBillet Guide Plate\u003c\/li\u003e\n\u003cli\u003eComplete Gasket Kit\u003cspan\u003e \u003c\/span\u003e\u003ci\u003e(Not shown in picture)\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003eOptional Carbs\u003c\/i\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003eOptional Flywheels\u003c\/i\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cb\u003e*Note:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eThese kits are intended for experienced engine builders. Some clearance, fitment, or other engine building \"tricks\" may be needed. This kit will not fit Hemi Predator engines. Please see our\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eHemi kits\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003efor those applications. Filter should be sprayed with K\u0026amp;N type oil, especially in dirt applications. \u003cbr\u003ePicture is for reference only. Actual content is based on above description and customer's selections. (In other words, the flywheel and carb shown are optional.)\u003cspan\u003e \u003c\/span\u003e\u003ci\u003eAluminum flywheel REQUIRED. Stock flywheels are prone to failure and are very DANGEROUS.\u003c\/i\u003e\u003cbr\u003e\u003cbr\u003e\u003ci\u003eDue to the head work involved in these kits, please allow 1 week to ship.\u003c\/i\u003e\n\u003c\/div\u003e","brand":"GoKarts USA®","offers":[{"title":"None (Customer to Supply Carb) \/ No Flywheel \/ None","offer_id":43110535036987,"sku":"NR-STAGE4HOPUP-P","price":477.0,"currency_code":"USD","in_stock":true},{"title":"None (Customer to Supply Carb) \/ No Flywheel \/ Add Blue HOT Coil","offer_id":43110535069755,"sku":"NR-STAGE4HOPUP-P","price":536.0,"currency_code":"USD","in_stock":true},{"title":"None (Customer to Supply Carb) \/ No Flywheel \/ Add Red HOT Coil","offer_id":43110535102523,"sku":"NR-STAGE4HOPUP-P","price":536.0,"currency_code":"USD","in_stock":true},{"title":"None (Customer to Supply Carb) \/ ARC Billet Aluminum Flywheel (6625) \/ None","offer_id":43110535135291,"sku":"NR-STAGE4HOPUP-P","price":585.0,"currency_code":"USD","in_stock":true},{"title":"None (Customer to Supply Carb) \/ ARC Billet Aluminum Flywheel (6625) \/ Add Blue HOT Coil","offer_id":43110535168059,"sku":"NR-STAGE4HOPUP-P","price":644.0,"currency_code":"USD","in_stock":true},{"title":"None (Customer to Supply Carb) \/ ARC Billet Aluminum Flywheel (6625) \/ Add Red HOT Coil","offer_id":43110535200827,"sku":"NR-STAGE4HOPUP-P","price":644.0,"currency_code":"USD","in_stock":true},{"title":"None (Customer to Supply Carb) \/ Lightweight 6600 (Includes PVL Coil) OHV Predator \/ None","offer_id":43110535233595,"sku":"NR-STAGE4HOPUP-P","price":807.0,"currency_code":"USD","in_stock":true},{"title":"None (Customer to Supply Carb) \/ Lightweight 6600 (Includes PVL Coil) OHV Predator \/ Add Blue HOT Coil","offer_id":43110535266363,"sku":"NR-STAGE4HOPUP-P","price":866.0,"currency_code":"USD","in_stock":true},{"title":"None (Customer to Supply Carb) \/ Lightweight 6600 (Includes PVL Coil) OHV Predator \/ Add Red HOT Coil","offer_id":43110535299131,"sku":"NR-STAGE4HOPUP-P","price":866.0,"currency_code":"USD","in_stock":true},{"title":"None (Customer to Supply Carb) \/ Super Light 6602 with Small Fan OHV Predator \/ None","offer_id":43110535331899,"sku":"NR-STAGE4HOPUP-P","price":616.0,"currency_code":"USD","in_stock":true},{"title":"None (Customer to Supply Carb) \/ Super Light 6602 with Small Fan OHV Predator \/ Add Blue HOT Coil","offer_id":43110535364667,"sku":"NR-STAGE4HOPUP-P","price":675.0,"currency_code":"USD","in_stock":true},{"title":"None (Customer to Supply Carb) \/ Super Light 6602 with Small Fan OHV Predator \/ Add Red HOT Coil","offer_id":43110535397435,"sku":"NR-STAGE4HOPUP-P","price":675.0,"currency_code":"USD","in_stock":true},{"title":"22mm Mikuni - Gas \/ No Flywheel \/ None","offer_id":43110535430203,"sku":"NR-STAGE4HOPUP-P","price":571.0,"currency_code":"USD","in_stock":true},{"title":"22mm Mikuni - Gas \/ No Flywheel \/ Add Blue HOT Coil","offer_id":43110535462971,"sku":"NR-STAGE4HOPUP-P","price":630.0,"currency_code":"USD","in_stock":true},{"title":"22mm Mikuni - Gas \/ No Flywheel \/ Add Red HOT Coil","offer_id":43110535495739,"sku":"NR-STAGE4HOPUP-P","price":630.0,"currency_code":"USD","in_stock":true},{"title":"22mm Mikuni - Gas \/ ARC Billet Aluminum Flywheel (6625) \/ None","offer_id":43110535528507,"sku":"NR-STAGE4HOPUP-P","price":679.0,"currency_code":"USD","in_stock":true},{"title":"22mm Mikuni - Gas \/ ARC Billet Aluminum Flywheel (6625) \/ Add Blue HOT Coil","offer_id":43110535561275,"sku":"NR-STAGE4HOPUP-P","price":738.0,"currency_code":"USD","in_stock":true},{"title":"22mm Mikuni - Gas \/ ARC Billet Aluminum Flywheel (6625) \/ Add Red HOT Coil","offer_id":43110535594043,"sku":"NR-STAGE4HOPUP-P","price":738.0,"currency_code":"USD","in_stock":true},{"title":"22mm Mikuni - Gas \/ Lightweight 6600 (Includes PVL Coil) OHV Predator \/ None","offer_id":43110535626811,"sku":"NR-STAGE4HOPUP-P","price":901.0,"currency_code":"USD","in_stock":true},{"title":"22mm Mikuni - Gas \/ Lightweight 6600 (Includes PVL Coil) OHV Predator \/ Add Blue HOT Coil","offer_id":43110535659579,"sku":"NR-STAGE4HOPUP-P","price":960.0,"currency_code":"USD","in_stock":true},{"title":"22mm Mikuni - Gas \/ Lightweight 6600 (Includes PVL Coil) OHV Predator \/ Add Red HOT Coil","offer_id":43110535692347,"sku":"NR-STAGE4HOPUP-P","price":960.0,"currency_code":"USD","in_stock":true},{"title":"22mm Mikuni - Gas \/ Super Light 6602 with Small Fan OHV Predator \/ None","offer_id":43110535725115,"sku":"NR-STAGE4HOPUP-P","price":710.0,"currency_code":"USD","in_stock":true},{"title":"22mm Mikuni - Gas \/ Super Light 6602 with Small Fan OHV Predator \/ Add Blue HOT Coil","offer_id":43110535757883,"sku":"NR-STAGE4HOPUP-P","price":769.0,"currency_code":"USD","in_stock":true},{"title":"22mm Mikuni - Gas \/ Super Light 6602 with Small Fan OHV Predator \/ Add Red HOT Coil","offer_id":43110535790651,"sku":"NR-STAGE4HOPUP-P","price":769.0,"currency_code":"USD","in_stock":true},{"title":"24mm Flat Slide Mikuni - Gas \/ No Flywheel \/ None","offer_id":43110535823419,"sku":"NR-STAGE4HOPUP-P","price":716.0,"currency_code":"USD","in_stock":true},{"title":"24mm Flat Slide Mikuni - Gas \/ No Flywheel \/ Add Blue HOT Coil","offer_id":43110535856187,"sku":"NR-STAGE4HOPUP-P","price":775.0,"currency_code":"USD","in_stock":true},{"title":"24mm Flat Slide Mikuni - Gas \/ No Flywheel \/ Add Red HOT Coil","offer_id":43110535888955,"sku":"NR-STAGE4HOPUP-P","price":775.0,"currency_code":"USD","in_stock":true},{"title":"24mm Flat Slide Mikuni - Gas \/ ARC Billet Aluminum Flywheel (6625) \/ None","offer_id":43110535921723,"sku":"NR-STAGE4HOPUP-P","price":824.0,"currency_code":"USD","in_stock":true},{"title":"24mm Flat Slide Mikuni - Gas \/ ARC Billet Aluminum Flywheel (6625) \/ Add Blue HOT Coil","offer_id":43110535954491,"sku":"NR-STAGE4HOPUP-P","price":883.0,"currency_code":"USD","in_stock":true},{"title":"24mm Flat Slide Mikuni - Gas \/ ARC Billet Aluminum Flywheel (6625) \/ Add Red HOT Coil","offer_id":43110535987259,"sku":"NR-STAGE4HOPUP-P","price":883.0,"currency_code":"USD","in_stock":true},{"title":"24mm Flat Slide Mikuni - Gas \/ Lightweight 6600 (Includes PVL Coil) OHV Predator \/ None","offer_id":43110536020027,"sku":"NR-STAGE4HOPUP-P","price":1046.0,"currency_code":"USD","in_stock":true},{"title":"24mm Flat Slide Mikuni - Gas \/ Lightweight 6600 (Includes PVL Coil) OHV Predator \/ Add Blue HOT Coil","offer_id":43110536052795,"sku":"NR-STAGE4HOPUP-P","price":1105.0,"currency_code":"USD","in_stock":true},{"title":"24mm Flat Slide Mikuni - Gas \/ Lightweight 6600 (Includes PVL Coil) OHV Predator \/ Add Red HOT Coil","offer_id":43110536085563,"sku":"NR-STAGE4HOPUP-P","price":1105.0,"currency_code":"USD","in_stock":true},{"title":"24mm Flat Slide Mikuni - Gas \/ Super Light 6602 with Small Fan OHV Predator \/ None","offer_id":43110536118331,"sku":"NR-STAGE4HOPUP-P","price":855.0,"currency_code":"USD","in_stock":true},{"title":"24mm Flat Slide Mikuni - Gas \/ Super Light 6602 with Small Fan OHV Predator \/ Add Blue HOT Coil","offer_id":43110536151099,"sku":"NR-STAGE4HOPUP-P","price":914.0,"currency_code":"USD","in_stock":true},{"title":"24mm Flat Slide Mikuni - Gas \/ Super Light 6602 with Small Fan OHV Predator \/ Add Red HOT Coil","offer_id":43110536183867,"sku":"NR-STAGE4HOPUP-P","price":914.0,"currency_code":"USD","in_stock":true},{"title":"28mm Gas Black Round Slide \/ No Flywheel \/ None","offer_id":43110536216635,"sku":"NR-STAGE4HOPUP-P","price":623.0,"currency_code":"USD","in_stock":true},{"title":"28mm Gas Black Round Slide \/ No Flywheel \/ Add Blue HOT Coil","offer_id":43110536249403,"sku":"NR-STAGE4HOPUP-P","price":682.0,"currency_code":"USD","in_stock":true},{"title":"28mm Gas Black Round Slide \/ No Flywheel \/ Add Red HOT Coil","offer_id":43110536282171,"sku":"NR-STAGE4HOPUP-P","price":682.0,"currency_code":"USD","in_stock":true},{"title":"28mm Gas Black Round Slide \/ ARC Billet Aluminum Flywheel (6625) \/ None","offer_id":43110536314939,"sku":"NR-STAGE4HOPUP-P","price":731.0,"currency_code":"USD","in_stock":true},{"title":"28mm Gas Black Round Slide \/ ARC Billet Aluminum Flywheel (6625) \/ Add Blue HOT Coil","offer_id":43110536347707,"sku":"NR-STAGE4HOPUP-P","price":790.0,"currency_code":"USD","in_stock":true},{"title":"28mm Gas Black Round Slide \/ ARC Billet Aluminum Flywheel (6625) \/ Add Red HOT Coil","offer_id":43110536380475,"sku":"NR-STAGE4HOPUP-P","price":790.0,"currency_code":"USD","in_stock":true},{"title":"28mm Gas Black Round Slide \/ Lightweight 6600 (Includes PVL Coil) OHV Predator \/ None","offer_id":43110536413243,"sku":"NR-STAGE4HOPUP-P","price":953.0,"currency_code":"USD","in_stock":true},{"title":"28mm Gas Black Round Slide \/ Lightweight 6600 (Includes PVL Coil) OHV Predator \/ Add Blue HOT Coil","offer_id":43110536446011,"sku":"NR-STAGE4HOPUP-P","price":1012.0,"currency_code":"USD","in_stock":true},{"title":"28mm Gas Black Round Slide \/ Lightweight 6600 (Includes PVL Coil) OHV Predator \/ Add Red HOT Coil","offer_id":43110536478779,"sku":"NR-STAGE4HOPUP-P","price":1012.0,"currency_code":"USD","in_stock":true},{"title":"28mm Gas Black Round Slide \/ Super Light 6602 with Small Fan OHV Predator \/ None","offer_id":43110536511547,"sku":"NR-STAGE4HOPUP-P","price":762.0,"currency_code":"USD","in_stock":true},{"title":"28mm Gas Black Round Slide \/ Super Light 6602 with Small Fan OHV Predator \/ Add Blue HOT Coil","offer_id":43110536544315,"sku":"NR-STAGE4HOPUP-P","price":821.0,"currency_code":"USD","in_stock":true},{"title":"28mm Gas Black Round Slide \/ Super Light 6602 with Small Fan OHV Predator \/ Add Red HOT Coil","offer_id":43110536577083,"sku":"NR-STAGE4HOPUP-P","price":821.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/STAGE4HOPUP-2_4170d630-fa0a-4f61-a36d-7a26877bc641.png?v=1764893775"},{"product_id":"hilliard-inferno-bully-bearing-race-h-t-used-in-bully-conversion-kit","title":"Hilliard Inferno Bully Bearing Race H.T. (Used in Bully Conversion Kit)","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/collections\/go-kart-speed-parts\" title=\"Main Menu\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Parts\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePerformance parts for Honda GX, Predator, Tillotson and Briggs Animal engines for Go Kart and Mini Bike.\u003c\/p\u003e","brand":"GoKarts USA®","offers":[{"title":"Default Title","offer_id":43060126548027,"sku":"NR-HDC-BCR","price":14.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/HDC-BCR-2.jpg?v=1764893775"},{"product_id":"speed-kit-gx200-6-5-ohv-clone-stage-3","title":"Speed Kit, GX200 \u0026 6.5 OHV Clone, Stage 3","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/pages\/speed-kit-selection-guide\" title=\"Main Menu\" style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Kit Selection Guide\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003c\/b\u003e\u003cspan\u003eNow you are getting serious! A step up from our \u003c\/span\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/products\/hop-up-kit-gx200-65-ohv-clone-stage-2\"\u003e\u003cspan\u003e\u003cb\u003eStage 2 kit\u003c\/b\u003e\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/products\/hop-up-kit-gx200-65-ohv-clone-stage-2\"\u003e,\u003c\/a\u003e we add a racing camshaft, a 22mm carburetor, and a billet rod. This kit produces 13-15hp or more.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eIncludes:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e22mm Mikuni Style Carb Kit\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eChoice of Cam (\u003ca href=\"https:\/\/gokartsusa.biz\/products\/252-rattlesnake-camshaft-for-gx200-65-clone-predator\"\u003e\u003cb\u003eRattlesnake\u003c\/b\u003e\u003c\/a\u003e or NR Racing's \u003ca href=\"https:\/\/gokartsusa.biz\/products\/252-series-approximately-252-lift-and-230-degrees-duration-at-050?variant=52591361884476\"\u003e252-0607\u003c\/a\u003e)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e22 or 26lb Springs \u003ci\u003e(Depending on camshaft)\u003c\/i\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAluminum Flywheel\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOffset Timing Key\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReinforced Rockers, Chrome Moly Pushrods, and Large Slot Guide Plate \u003ci\u003e(With 252 Cam)\u003c\/i\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBillet Rod +.020\"\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAll Needed Gaskets \u003ci\u003e(Head gaskets not Included)\u003c\/i\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003ci\u003eOptional Header\/Exhaust\u003c\/i\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cb\u003e--Camshaft Choices--\u003c\/b\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e252 Cam Package Includes:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eCam, 26lb Springs, Chrome Moly Pushrods, and Reinforced Rockers\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eRattlesnake Cam Package Includes:\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003eCam and 22lb Springs ONLY\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e*Note:\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003eTo get maximum power, head should be ported and\/or milled.\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eThis kit will not fit Harbor Freight 212 Predator engines. Please see our \u003c\/span\u003e\u003cb\u003ePredator kits\u003c\/b\u003e\u003cspan\u003e for those applications. \u003c\/span\u003e\u003cspan\u003eFilter should be sprayed with a K\u0026amp;N type oil, especially for dirt applications. Oil is not included in this kit\u003c\/span\u003e\u003cspan\u003e. \u003c\/span\u003e\u003cspan\u003ePictures are for reference only. See description for actual content. Parts may be different than pictures, depending on which options are selected.\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003ci\u003eWARNING: Optional header\/pipe should be supported with a brace or bracket to either the frame or the engine; otherwise, pipe may fracture or break.\u003c\/i\u003e\u003c\/div\u003e","brand":"GoKarts USA®","offers":[{"title":"Rattlesnake Cam Package (GX200\/Clone)","offer_id":43110536839227,"sku":"NR-STAGE3HOPUP","price":283.0,"currency_code":"USD","in_stock":true},{"title":"252-0607 Cam Package (GX200\/Clone) [+$76]","offer_id":43110536871995,"sku":"NR-STAGE3HOPUP","price":359.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/STAGE3HOPUP-2_1e4ee01d-94b4-46a5-8171-401f2cec50cf.png?v=1764893776"},{"product_id":"speed-kit-224cc-predator-stage-1","title":"Speed Kit, 224cc Predator, Stage 1","description":"\u003cp\u003e\u003cb\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/pages\/speed-kit-selection-guide\" title=\"Speed Kit Selection Guide\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Kit Selection Guide\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBasic kit for improving the performance of 224cc \"Max Performance\" Predators. Simple to install, you can expect significant performance increases. Approximately 10+ HP.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e*This kit will not fit the Hemi style 224cc Predator. If you have a 212cc Predator, please see our \u003c\/span\u003e\u003cb\u003e212 Predator Kits\u003c\/b\u003e\u003cspan\u003e for those applications.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eKit Includes:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRace\/Open Air Filter \u0026amp; Adapter\u003c\/li\u003e\n\u003cli\u003eChoke Bracket\u003c\/li\u003e\n\u003cli\u003eCorrect Jet for Application\u003c\/li\u003e\n\u003cli\u003eUpgraded Valve Springs (22lb)\u003c\/li\u003e\n\u003cli\u003eValve Cover Gasket\u003c\/li\u003e\n\u003cli\u003eChoice of Small Fan or Aluminum Flywheel\u003c\/li\u003e\n\u003cli\u003eOffset Timing Key\u003c\/li\u003e\n\u003cli\u003eMetal Spacer Gasket for use with Stock Carburetor\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003eOptional Header\/Exhaust\u003c\/i\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e*Picture is for reference only and may show optional parts. See above description for actual content. Header not included unless specified. (When selecting the aluminum flywheel, the small fan is not included nor necessary.)\u003cbr\u003e\u003cbr\u003eHeaders may need a small amount of grinding or filing in flange holes to fit to the exhaust studs.\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003eFilter should be sprayed with a K\u0026amp;N type oil, especially in dirt applications. Oil not included.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cbr\u003eAluminum or Honda flywheel recommended. Stock flywheels, especially \"clones\", are prone to failure and are very dangerous!\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cbr\u003e\u003cspan\u003eWARNING: Header\/pipe should be supported with a bracket\/brace to either the frame or the engine; otherwise, pipe may fracture or break.\u003c\/span\u003e\n\u003c\/div\u003e","brand":"GoKarts USA®","offers":[{"title":"Kit with Small Fan (S1-224) \/ No Exhaust","offer_id":43060126777403,"sku":"NR-STAGE1HOPUP-224","price":50.0,"currency_code":"USD","in_stock":true},{"title":"Kit with Small Fan (S1-224) \/ Add Header- Kart","offer_id":43060126810171,"sku":"NR-STAGE1HOPUP-225","price":83.0,"currency_code":"USD","in_stock":true},{"title":"Kit with Small Fan (S1-224) \/ Add Header- Mini Bike","offer_id":43060126842939,"sku":"NR-STAGE1HOPUP-225","price":78.0,"currency_code":"USD","in_stock":true},{"title":"Kit with Aluminum Flywheel (S1-224) \/ No Exhaust","offer_id":43060126875707,"sku":"NR-STAGE1HOPUP-227","price":114.0,"currency_code":"USD","in_stock":true},{"title":"Kit with Aluminum Flywheel (S1-224) \/ Add Header- Kart","offer_id":43060126908475,"sku":"NR-STAGE1HOPUP-228","price":147.0,"currency_code":"USD","in_stock":true},{"title":"Kit with Aluminum Flywheel (S1-224) \/ Add Header- Mini Bike","offer_id":43060126941243,"sku":"NR-STAGE1HOPUP-224","price":142.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/STAGE1HOPUP-2_9e8b3cda-5fe9-4c39-afd2-ab74194c321c.png?v=1764893776"},{"product_id":"speed-kit-420-predator-or-ohv-13-15hp-clone-stage-4","title":"Speed Kit, 420 Predator or OHV \u0026 13\/15hp Clone, Stage 4","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/pages\/speed-kit-selection-guide\" title=\"Speed Kit Selection Guide\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Kit Selection Guide\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eThis kit is similar to our Stage 3, but adds a ported and milled head with stainless valves, a stud kit, and heavy duty valve train components. Allows up to 35+ HP out of a 420 engine. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eThis kit is for OHV engines and will not fit Hemis. \u003c\/b\u003e\u003cbr\u003e\u003cb\u003e\u003c\/b\u003e\u003cbr\u003e\u003cb\u003eKit Includes:\u003c\/b\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eFully Ported and Milled Race Head \u003ci\u003e(Genuine Honda Core)\u003c\/i\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eHigh-Torque Genuine Honda Core\u003cspan\u003e \u003c\/span\u003e\u003ci\u003e(The Best!!)\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh-Flow 36mm \/ 31mm Valves with Lash Caps\u003c\/li\u003e\n\u003cli\u003eDual Springs with Titanium Retainers\u003c\/li\u003e\n\u003cli\u003e307 Race Cam\u003c\/li\u003e\n\u003cli\u003eBlack Venom Aluminum Roller Rockers\u003c\/li\u003e\n\u003cli\u003eValve Cover Spacer\u003c\/li\u003e\n\u003cli\u003eChrome Moly Pushrods\u003c\/li\u003e\n\u003cli\u003eChoice of Carbs\u003cspan\u003e \u003c\/span\u003e\u003ci\u003e(Or use your own)\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003e90mm Forged Flat-Top Piston with Rings\u003c\/li\u003e\n\u003cli\u003eBillet Rod\u003cspan\u003e \u003c\/span\u003e\u003ci\u003e(+.040\" Longer)\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003eOffset Timing Key\u003c\/li\u003e\n\u003cli\u003eCarb, Insulator, Head, and Case Gaskets\u003c\/li\u003e\n\u003cli\u003eARP Bolt Kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\n\u003cb\u003e\u003cbr\u003e*Note:\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003eThis kit only fits 414 \u0026amp; 420cc (90mm) non-hemi engines. Filter should be sprayed with K\u0026amp;N type oil, especially in dirt applications. Oil not included. Billet aluminum flywheel REQUIRED. These kits are intended for experienced engine builders. Some clearance, fitment, or other engine building \"tricks\" may be needed. Picture for reference only. See above description for actual content.\u003cbr\u003e\u003cbr\u003e\u003ci\u003eDue to the head work required for this kit, please allow 1 week to ship.\u003c\/i\u003e\n\u003c\/div\u003e","brand":"GoKarts USA®","offers":[{"title":"No Carburetor \/ No Flywheel","offer_id":43060127039547,"sku":"NR-STAGE4KIT420-P-1","price":1200.0,"currency_code":"USD","in_stock":true},{"title":"No Carburetor \/ Add Aluminum Flywheel - Recoil Start","offer_id":43060127072315,"sku":"sku-52229537726780","price":1366.0,"currency_code":"USD","in_stock":true},{"title":"No Carburetor \/ Add Aluminum Flywheel - Electric Start","offer_id":43060127105083,"sku":"sku-52229537759548","price":1423.0,"currency_code":"USD","in_stock":true},{"title":"34mm Round Slide Mikuni - Gas \/ No Flywheel","offer_id":43060127137851,"sku":"NR-STAGE4KIT420-P-2","price":1394.0,"currency_code":"USD","in_stock":true},{"title":"34mm Round Slide Mikuni - Gas \/ Add Aluminum Flywheel - Recoil Start","offer_id":43060127170619,"sku":"sku-52229537792316","price":1560.0,"currency_code":"USD","in_stock":true},{"title":"34mm Round Slide Mikuni - Gas \/ Add Aluminum Flywheel - Electric Start","offer_id":43060127203387,"sku":"sku-52229537825084","price":1617.0,"currency_code":"USD","in_stock":true},{"title":"34mm Flat Slide Mikuni - Gas \/ No Flywheel","offer_id":43060127236155,"sku":"NR-STAGE4KIT420-P-3","price":1434.0,"currency_code":"USD","in_stock":true},{"title":"34mm Flat Slide Mikuni - Gas \/ Add Aluminum Flywheel - Recoil Start","offer_id":43060127268923,"sku":"sku-52229537857852","price":1600.0,"currency_code":"USD","in_stock":true},{"title":"34mm Flat Slide Mikuni - Gas \/ Add Aluminum Flywheel - Electric Start","offer_id":43060127301691,"sku":"sku-52229537890620","price":1657.0,"currency_code":"USD","in_stock":true},{"title":"33mm Mikuni Pumper - Gas \/ No Flywheel","offer_id":43060127334459,"sku":"NR-STAGE4KIT420-P-4","price":1536.0,"currency_code":"USD","in_stock":true},{"title":"33mm Mikuni Pumper - Gas \/ Add Aluminum Flywheel - Recoil Start","offer_id":43060127367227,"sku":"sku-52229537923388","price":1702.0,"currency_code":"USD","in_stock":true},{"title":"33mm Mikuni Pumper - Gas \/ Add Aluminum Flywheel - Electric Start","offer_id":43060127399995,"sku":"sku-52229537956156","price":1759.0,"currency_code":"USD","in_stock":true},{"title":"33mm Mikuni Pumper - Methanol \/ No Flywheel","offer_id":43060127432763,"sku":"NR-STAGE4KIT420-P-5","price":1622.0,"currency_code":"USD","in_stock":true},{"title":"33mm Mikuni Pumper - Methanol \/ Add Aluminum Flywheel - Recoil Start","offer_id":43060127465531,"sku":"sku-52229537988924","price":1759.0,"currency_code":"USD","in_stock":true},{"title":"33mm Mikuni Pumper - Methanol \/ Add Aluminum Flywheel - Electric Start","offer_id":43060127498299,"sku":"sku-52229538021692","price":1845.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/STAGE4KIT390-2_f4c905eb-bb4d-4a6d-85f1-faf911d402f9.png?v=1764893776"},{"product_id":"speed-kit-212-predator-hemi-stage-3","title":"Speed Kit, 212 Predator Hemi, Stage 3","description":"\u003cdiv\u003e\u003cstrong\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003ca href=\"https:\/\/gokartsusa.biz\/pages\/speed-kit-selection-guide\" title=\"Speed Kit Selection Guide\" style=\"background-color: rgb(255, 255, 0);\"\u003eSpeed Kit Selection Guide\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv\u003eNow you are getting serious! A step up from our\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eStage 2 kit\u003c\/b\u003e, we add a racing camshaft, a 22mm carburetor, and a billet rod. This kit produces 13-15+ HP.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cb\u003eIncludes:\u003c\/b\u003e\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e22mm Mikuni Style Carb Kit\u003c\/li\u003e\n\u003cli\u003eChoice of Cam\u003cspan\u003e \u003c\/span\u003e\u003ci\u003e(Rattlesnake or NR Racing's 252-0607)\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003e18lb or 26lb Springs\u003cspan\u003e \u003c\/span\u003e\u003ci\u003e(Depending on Cam Selection)\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003eAluminum Flywheel\u003c\/li\u003e\n\u003cli\u003eOffset Timing Key\u003c\/li\u003e\n\u003cli\u003eChrome Moly Pushrods\u003cspan\u003e \u003c\/span\u003e\u003ci\u003e(With 252 Cam Selection)\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003eBillet Rod (+.020\")\u003c\/li\u003e\n\u003cli\u003eAll Needed Gaskets\u003cspan\u003e \u003c\/span\u003e\u003ci\u003e(Head Gasket not Included)\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ci\u003eOptional Header\/Exhaust\u003c\/i\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cb\u003e--Camshaft Choices--\u003c\/b\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e252 Cam Package Includes:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eCam, 26lb Springs, and Chrome Moly Pushrods.\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003eRattlesnake Cam Package Includes:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eCam and 18lb Springs ONLY.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cb\u003e*Note:\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eTo get maximum power, head should be ported and\/or milled.\u003c\/div\u003e\n\u003cdiv\u003eFilter should be sprayed with a K\u0026amp;N type oil, especially for dirt applications. Oil is not included \u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003eThis kit fits hemi Predators ONLY (Model 60363 [210FA] with the case aluminum valve cover). It will not work with non-hemi Predators (Model 69730 [R210] with the stamped steel valve cover).\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003ePictures are for reference only. See description above for actual content. Parts may differ from picture, depending on which options are selected.\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003ci\u003e\u003cspan\u003eWARNING: Optional header\/pipe should be supported with a bracket or brace either to the engine or the frame; otherwise, pipe may fracture or break.\u003c\/span\u003e\u003c\/i\u003e\u003c\/div\u003e","brand":"GoKarts USA®","offers":[{"title":"Rattlesnake Cam Package (212 Hemi)","offer_id":43110537101371,"sku":"NR-STAGE3HOPUP-PH","price":285.0,"currency_code":"USD","in_stock":true},{"title":"252-0607 Cam Package (212 Hemi)","offer_id":43110537134139,"sku":"NR-STAGE3HOPUP-PH","price":325.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/files\/STAGE3HOPUP-PH-2.png?v=1764893776"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0589\/5159\/8139\/collections\/STAGE4HOPUP-PH-2_1.png?v=1765575490","url":"https:\/\/gtcracing.com\/collections\/kart-racing-upgrade-kits.oembed?page=3","provider":"GTC Racing","version":"1.0","type":"link"}