{"product_id":"motovecor-centrifugal-clutch-for-go-kart-minibike-3-4-bore-12t-35-chain-fits-2-6-5hp-engines-auto-engage","title":"Motovecor Centrifugal Clutch for Go-Kart \u0026 Minibike — 3\/4\" Bore 12T #35 Chain, Fits 2–6.5HP Engines, Auto-Engage","description":"\u003cp\u003e\u003cstrong\u003eMotovecor centrifugal clutch: a direct-fit 3\/4\" bore, 12-tooth clutch designed for #35 chain to upgrade small engines on go-karts, minibikes and mini project builds.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf you need a durable replacement or an upgrade clutch for popular 2–6.5 HP engines, this Motovecor unit offers a compact centrifugal design that engages automatically as RPM rises and accepts standard #35 chain sprockets. It’s engineered to work on common horizontal shaft engines with a 3\/4\" crank and 3\/16\" keyway, giving you a simple bolt-on option for fun karts, mini bikes, and small utility projects.\u003c\/p\u003e\n\n\u003ch3\u003eWhich engines and machines will this clutch fit?\u003c\/h3\u003e\n\u003cp\u003eThis clutch fits most small horizontal-shaft engines that have a 3\/4\" crank with a 3\/16\" keyway and fall in the 2–6.5 HP range. It commonly pairs with popular models and clone motors, so it’s versatile for many hobby and repair needs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with Honda GX120, GX140, GX160, GX200 and similar clones\u003c\/li\u003e\n  \u003cli\u003eWorks with Predator 212cc, Harbor Freight clones, and many 5.5–6.5 HP engines\u003c\/li\u003e\n  \u003cli\u003eDesigned for go-karts, minibikes, mini choppers, and light-duty power equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the clutch behave during acceleration and normal use?\u003c\/h3\u003e\n\u003cp\u003eThe Motovecor centrifugal clutch is spring-weighted so it stays disengaged at idle and engages progressively as RPM increases, transferring power to the chain only when needed. That means smoother starts and automatic engagement without manual clutch control.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAutomatic engagement around recommended operating RPM for small engines\u003c\/li\u003e\n  \u003cli\u003eSmooth power transfer reduces stalling on takeoff and idling issues\u003c\/li\u003e\n  \u003cli\u003eDurable shoe and drum design for repeated start\/stop cycles\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat installation hardware and accessories are included?\u003c\/h3\u003e\n\u003cp\u003eThe clutch ships with two set screws for securing it to the engine shaft; the drive sprocket and chain are not supplied, so you can choose sprocket tooth counts to match your gearing needs. Installation is straightforward for anyone comfortable with basic hand tools and engine mounting procedures.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes two set screws for secure mounting to the shaft\u003c\/li\u003e\n  \u003cli\u003eNo sprocket or chain included — choose a #35 sprocket for this 12-tooth hub\u003c\/li\u003e\n  \u003cli\u003eRequires a 3\/16\" key in the shaft for proper torque transfer\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat performance and sizing details should I check before buying?\u003c\/h3\u003e\n\u003cp\u003eConfirm your engine’s shaft diameter, keyway size and desired gearing before ordering to avoid fitment issues. This clutch is a 12-tooth unit sized for #35 chain and intended for small engine RPM ranges used in recreational karts and bikes.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBore: 3\/4\" (0.750\") with 3\/16\" keyway requirement\u003c\/li\u003e\n  \u003cli\u003eTooth count: 12T; chain size: #35 (compatible sprockets required)\u003c\/li\u003e\n  \u003cli\u003eRecommended for 2–6.5 HP engines operating at standard small-engine RPMs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? This Motovecor clutch is aimed at hobbyists, racers and DIY mechanics who need a reliable centrifugal clutch for small engine builds, repairs or upgrades. If you’re building or restoring a go-kart, minibike or compact utility machine and your engine has a 3\/4\" shaft with a 3\/16\" keyway, this clutch gives a straightforward, bolt-on way to add or restore chain drive power. It’s not supplied with a drive chain or sprocket, so buyers should be prepared to select compatible #35 chain components to match their final gear ratio and application.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this clutch fit my GX160 or Predator 212 engine?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes if your engine has a 3\/4\" crank shaft and a 3\/16\" keyway; verify shaft size before ordering.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the kit include the drive chain or sprocket?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No, the clutch includes two set screws only; you must purchase a #35 sprocket and chain separately.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Motovecor","offers":[{"title":"Default Title","offer_id":48086305079454,"sku":"B07TQLWWVM","price":41.88,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/motovecor-clutch-front-view.jpg?v=1785894580","url":"https:\/\/northtrailauto.ca\/products\/motovecor-centrifugal-clutch-for-go-kart-minibike-3-4-bore-12t-35-chain-fits-2-6-5hp-engines-auto-engage","provider":"North Trail Auto","version":"1.0","type":"link"}