{"product_id":"646m04850-piston-kit-for-yamaha-yz80-1993-2000-wiseco-060-48-50-mm","title":"646M04850 Piston Kit for Yamaha YZ80 1993-2000 Wiseco .060 48.50 mm","description":"\u003ch2\u003eWiseco .060 Piston Kit for Yamaha YZ80\u003c\/h2\u003e\u003cp\u003eThis Wiseco .060 oversize piston kit, part 646M04850, is a 48.50 mm piston assembly for Yamaha YZ80 engines, giving a worn top end a fresh bore-size match.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis Wiseco .060 piston kit for Yamaha YZ80 models from 1993 through 2000 delivers a 48.50 mm oversize piston for a rebuilt or re-bored cylinder. The kit is built for riders and mechanics refreshing top-end compression on a YZ80. Each piston kit for Yamaha YZ80 applications is sized at .060 over to match a machined cylinder bore.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e48.50 mm oversize piston sized at .060 over stock bore\u003c\/li\u003e\n\u003cli\u003eForged piston construction for strength under high rpm\u003c\/li\u003e\n\u003cli\u003eWiseco part number 646M04850 for easy verification\u003c\/li\u003e\n\u003cli\u003eDesigned for two-stroke YZ80 top-end rebuilds\u003c\/li\u003e\n\u003cli\u003eRing, pin, and clip hardware included in the kit\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Yamaha YZ80 1993\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ80 1994\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ80 1995\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ80 1996\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ80 1997\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ80 1998\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ80 1999\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ80 2000\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTop-end rebuilds after cylinder wear or seizure\u003c\/li\u003e\n\u003cli\u003eRe-bored cylinders that need an oversize piston\u003c\/li\u003e\n\u003cli\u003eMotocross and trail maintenance on YZ80 machines\u003c\/li\u003e\n\u003cli\u003eRestoring compression on high-hour engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e646M04850\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePiston Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e48.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOversize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.060 over\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003efor Wiseco\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMachine\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003efor Yamaha YZ80\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this piston kit fit a stock cylinder? \u003cstrong\u003eA:\u003c\/strong\u003e It is a .060 oversize piston, so the cylinder must be bored and honed to match the 48.50 mm size before installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What else should be replaced during a top-end rebuild? \u003cstrong\u003eA:\u003c\/strong\u003e Check the ring end gap, wrist pin bearing, and cylinder plating or bore condition, then replace worn parts as needed.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eSlight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.\u003c\/em\u003e\u003c\/p\u003e","brand":"Solid Spare","offers":[{"title":"Default Title","offer_id":51140191191126,"sku":"OO1C22670","price":307.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_241b6165-cad4-4b55-8b91-b2b0cd075446.jpg?v=1794566021","url":"https:\/\/www.solidspare.com\/products\/646m04850-piston-kit-for-yamaha-yz80-1993-2000-wiseco-060-48-50-mm","provider":"Solid Spare","version":"1.0","type":"link"}