{"product_id":"sehnsucht-centrifugal-clutch-3-4-bore-for-minibike-go-kart-fits-40-41-420-chain-2-6-5hp","title":"SEHNSUCHT Centrifugal Clutch 3\/4\" Bore for Minibike \u0026 Go-Kart, Fits #40\/#41\/420 Chain, 2–6.5HP","description":"\u003cp\u003e\u003cstrong\u003eSEHNSUCHT centrifugal clutch with a 3\/4\" (19.05mm) bore designed to transfer power from 2–6.5HP small engines to #40\/#41\/420 chains for minibikes, go-karts and Honda clone motors.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis heavy-duty replacement clutch is built to bolt directly to 3\/4\" crankshafts commonly found on minibikes MB165\/MB200, Baja-style machines and many Honda-clone engines (GC160, GC190, GX120, GX140, GX160, GX200). It includes an accessory kit and installation notes to help you seat the unit correctly, break it in, and avoid slip or smoke from insufficient contact. The unit is not compatible with generators that use a 20mm (0.787\") shaft.\u003c\/p\u003e\n\n\u003ch3\u003eHow do I know this clutch fits my engine shaft?\u003c\/h3\u003e\n\n\u003cp\u003eMeasure the crankshaft diameter: this model accepts a 3\/4\" (19.05mm) bore only. It will not fit shafts that measure 20mm (0.787\") or other nonstandard sizes. Confirm your engine model against common lists for compatibility.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with engines that have a 3\/4\" crankshaft bore.\u003c\/li\u003e\n  \u003cli\u003eWorks with Honda-clone models GC160, GC190, GX120, GX140, GX160, GX200.\u003c\/li\u003e\n  \u003cli\u003eAlso fits many Tecumseh and Briggs \u0026amp; Stratton engines with 3\/4\" shafts.\u003c\/li\u003e\n  \u003cli\u003eNot suitable for generators using a 20mm shaft.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat chain sizes and drivetrains does it support?\u003c\/h3\u003e\n\n\u003cp\u003eThis clutch is machined to mate with sprockets and drive systems using #40, #41 or 420 chain types—typical on minibikes and small go-karts. Pair it with an appropriate sprocket and chain tensioner to maintain smooth engagement and long life.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible chain sizes: #40, #41, 420.\u003c\/li\u003e\n  \u003cli\u003eUse a matched sprocket to avoid rapid wear or misalignment.\u003c\/li\u003e\n  \u003cli\u003eMaintain proper chain tension and alignment for best results.\u003c\/li\u003e\n  \u003cli\u003eInclude a chain guard in exposed installations for safety.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I install and break in the new clutch?\u003c\/h3\u003e\n\n\u003cp\u003eInstallation mounts on the crankshaft using the supplied bolt and washer—apply light lubricant to the snap ring area before fitting so the assembly moves freely. Break-in is a short two-step sequence to seat the shoes and prevent slipping or overheating.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFit clutch using the bolt and washer provided in the accessory kit.\u003c\/li\u003e\n  \u003cli\u003eLubricate the snap-ring area, then ensure free rotation before final fastening.\u003c\/li\u003e\n  \u003cli\u003eBreak-in: run unloaded to engagement, hold 10 seconds, cool; then three gradual loaded runs to full speed with 2-minute cool intervals.\u003c\/li\u003e\n  \u003cli\u003eExpect 3–5 cycles for proper bedding; watch for slipping or smoke during first runs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat power range and vehicle types is this designed for?\u003c\/h3\u003e\n\n\u003cp\u003eThe SEHNSUCHT clutch is sized for small engines producing roughly 2 to 6.5 horsepower, making it ideal for minibikes, go-karts, and small utility platforms that require a centrifugal engagement. It pairs well with recreational Baja-style minibikes and similar light-duty platforms.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRecommended power range: 2–6.5 HP engines.\u003c\/li\u003e\n  \u003cli\u003eCommon applications: MB165, MB200 minibikes, Baja Mini and Baja Warrior models.\u003c\/li\u003e\n  \u003cli\u003eSuitable for go-karts and other recreational small-vehicle builds.\u003c\/li\u003e\n  \u003cli\u003eNot intended for heavy industrial or continuous high-load generator use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Builders and DIY mechanics restoring or upgrading minibikes, go-karts and small-vehicle projects that use Honda-clone or similar small engines with a 3\/4\" crankshaft. If you need a direct-fit replacement clutch that accepts #40\/#41\/420 chain and supports 2–6.5HP engines, this SEHNSUCHT kit includes the clutch and accessory hardware plus guidance for proper installation and break-in.\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 Honda GC160 engine?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, if your GC160 has a 3\/4\" (19.05mm) crankshaft bore this SEHNSUCHT clutch is compatible.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long is the break-in period after installation?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Expect a short break-in: 3–5 cycles including unloaded engagement and three gradual loaded runs with cooling intervals.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"SEHNSUCHT","offers":[{"title":"Default Title","offer_id":67591221149881,"sku":"B0CCD8R4RM","price":72.34,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/sehnsucht-front-facing-clutch-assembly.jpg?v=1790544148","url":"https:\/\/redleafauto.ca\/products\/sehnsucht-centrifugal-clutch-3-4-bore-for-minibike-go-kart-fits-40-41-420-chain-2-6-5hp","provider":"Redleaf Auto","version":"1.0","type":"link"}