{"product_id":"sehnsucht-centrifugal-clutch-3-4-bore-for-minibike-go-kart-10t-sprocket-fits-40-41-420-chain-2-6-5hp","title":"SEHNSUCHT Centrifugal Clutch 3\/4\" Bore for Minibike \u0026 Go-Kart — 10T Sprocket, Fits #40\/#41\/#420 Chain, 2–6.5HP","description":"\u003cp\u003e\u003cstrong\u003eSEHNSUCHT Centrifugal Clutch 3\/4\" bore is a bolt-on transmission clutch that engages automatically between 2–6.5 HP engines, designed for minibikes, go-karts and Honda-clone small engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis clutch assembly offers a straightforward replacement or upgrade for minibike and small-engine projects that use a 3\/4\" (19.05 mm) shaft. It accepts 10-tooth sprockets and works with #40, #41 or #420 chain sizes, giving builders a compatible, compact choice for MB165\/MB200-style minibikes and many Honda-clone engines (GC160, GC190, GX120, GX140, GX160, GX200) as well as some Tecumseh and Briggs \u0026amp; Stratton engines with the same shaft diameter. The unit ships with an accessories kit and includes bedding-in guidance to ensure reliable engagement and longer service life.\u003c\/p\u003e\n\n\u003ch3\u003eWill this clutch fit my engine or minibike?\u003c\/h3\u003e\n\u003cp\u003eCheck your crankshaft diameter and generator shaft specifications before ordering. This SEHNSUCHT clutch requires a 3\/4\" (19.05 mm) bore; it does not fit generators listed with a 20 mm (0.787\") shaft.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits engines with 3\/4\" (19.05 mm) crankshafts only.\u003c\/li\u003e\n  \u003cli\u003eCompatible with Honda clone engines GC160\/GC190\/GX120\/GX140\/GX160\/GX200.\u003c\/li\u003e\n  \u003cli\u003eWorks with Tecumseh and Briggs \u0026amp; Stratton engines that have a 3\/4\" shaft.\u003c\/li\u003e\n  \u003cli\u003eDesigned for minibikes\/go-karts like MB165, MB200, Mini Baja and similar frames.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install and prepare the clutch for use?\u003c\/h3\u003e\n\u003cp\u003eInstallation mounts to the crankshaft using the supplied bolt and washer; the kit includes the small parts required. Before first heavy use, follow the break-in procedure and apply lubricant to the snap ring area so the clutch rotates freely during bedding in.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMount on the crankshaft with the supplied bolt and washer.\u003c\/li\u003e\n  \u003cli\u003eApply a light lubricant to the snap ring area and allow penetration before rotating.\u003c\/li\u003e\n  \u003cli\u003eRun the clutch unloaded to first engagement for 10 seconds, cool, then perform three progressive loaded runs.\u003c\/li\u003e\n  \u003cli\u003eCool intervals of ~2 minutes between loaded runs help prevent overheating and glazing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat power and chain options does it support?\u003c\/h3\u003e\n\u003cp\u003eThe clutch is rated to function well on engines from roughly 2 to 6.5 HP, and it pairs with common small-chain sizes used on minibikes and light duty carts. The 10-tooth sprocket option keeps chain run compact while matching standard drive setups.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSuitable for engines producing about 2–6.5 HP.\u003c\/li\u003e\n  \u003cli\u003eAccepts 10T sprockets and fits #40, #41 or #420 chain standards.\u003c\/li\u003e\n  \u003cli\u003eCompact design for close chain alignment and reduced slack.\u003c\/li\u003e\n  \u003cli\u003eIntended for light duty vehicles—minibikes, go-karts, and small utility rigs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I avoid slipping, smoke, or premature wear?\u003c\/h3\u003e\n\u003cp\u003eProper break-in, correct mounting, and avoiding overload during initial runs are key. Follow the provided bedding steps and confirm the clutch fully engages before regular loaded operation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eComplete the two-stage break-in routine: unloaded engagement runs, then gradual loaded runs.\u003c\/li\u003e\n  \u003cli\u003eEnsure lubricant is placed above the snap ring to prevent binding during rotation.\u003c\/li\u003e\n  \u003cli\u003eDo not overload the clutch during initial cycles; allow cooling between runs.\u003c\/li\u003e\n  \u003cli\u003eInspect for correct chain alignment and sprocket fit to minimize lateral wear.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This SEHNSUCHT centrifugal clutch is built for hobbyists, small-vehicle builders and repairers who need a reliable, bolt-on solution for minibikes, go-karts and small engine conversions using a 3\/4\" shaft. It suits anyone upgrading worn clutches, replacing a factory unit on Honda-clone engines, or assembling a custom drive where a compact 10T sprocket and #40\/#41\/#420 chain are used. If you require a 20 mm shaft or generator-specific fitment, choose a clutch specified for that diameter instead.\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: Does this clutch fit a 20 mm shaft?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. This SEHNSUCHT clutch fits a 3\/4\" (19.05 mm) shaft and is not compatible with 20 mm (0.787\") generator shafts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What chains and engines are supported?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It supports #40, #41, and #420 chains and fits many 2–6.5 HP engines including Honda clones GC\/GX series with a 3\/4\" shaft.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"SEHNSUCHT","offers":[{"title":"Default Title","offer_id":48087182213278,"sku":"B0CCD8R4RM","price":35.73,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/sehnsucht-front-view-clutch-assembly.jpg?v=1785918273","url":"https:\/\/northtrailauto.ca\/products\/sehnsucht-centrifugal-clutch-3-4-bore-for-minibike-go-kart-10t-sprocket-fits-40-41-420-chain-2-6-5hp","provider":"North Trail Auto","version":"1.0","type":"link"}