{"product_id":"4045m08700-wiseco-std-piston-kit-for-yamaha-sr500-1978-1981-87-00-mm-10-1-cr","title":"4045M08700 Wiseco Std Piston Kit for Yamaha SR500 1978-1981 87.00 mm 10:1 CR","description":"\u003ch2\u003eWiseco Std Piston Kit for Yamaha SR500\u003c\/h2\u003e\u003cp\u003eThis Wiseco standard bore piston kit, OEM cross-reference 4045M08700, is a 87.00 mm forged piston assembly with a 10:1 compression ratio built for Yamaha SR500 engines.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis Wiseco Std Piston Kit for Yamaha SR500 delivers a forged piston, rings, wrist pin, and clips for a fresh top end on 1978-1981 SR500 models. The 87.00 mm bore and 10:1 compression ratio keep the engine close to factory specification for everyday riding and trail use. Riders and mechanics rebuilding tired SR500 engines get dependable Wiseco quality in one box.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eForged aluminum piston construction for strength under heat and load\u003c\/li\u003e\n\u003cli\u003e10:1 compression ratio suited to stock and lightly modified SR500 engines\u003c\/li\u003e\n\u003cli\u003e87.00 mm standard bore size matches the original cylinder dimensions\u003c\/li\u003e\n\u003cli\u003eKit includes piston, rings, wrist pin, and circlips for a complete top end rebuild\u003c\/li\u003e\n\u003cli\u003eOEM cross-reference 4045M08700 for easy parts verification\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Yamaha SR500 1978\u003c\/li\u003e\n\u003cli\u003efor Yamaha SR500 1979\u003c\/li\u003e\n\u003cli\u003efor Yamaha SR500 1980\u003c\/li\u003e\n\u003cli\u003efor Yamaha SR500 1981\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTop end rebuilds on 1978-1981 Yamaha SR500 engines\u003c\/li\u003e\n\u003cli\u003eRestoring compression on a high mileage single cylinder thumper\u003c\/li\u003e\n\u003cli\u003eRefresh of a classic SR500 before a riding season\u003c\/li\u003e\n\u003cli\u003eWorkshop rebuilds where factory bore size is retained\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\u003e4045M08700\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e87.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompression Ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePiston Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard bore, forged\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 What is included in this kit? \u003cstrong\u003eA:\u003c\/strong\u003e The kit arrives as a complete piston assembly with rings, wrist pin, and circlips for a full top end refresh. Inspect the cylinder bore for wear before installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this fit other Yamaha models? \u003cstrong\u003eA:\u003c\/strong\u003e Fitment is listed for the SR500 from 1978 through 1981, and the 87.00 mm bore and 10:1 ratio match that engine. Confirm your model and engine year before ordering.\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":51140123918422,"sku":"OO1C22574","price":523.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_900ba909-d324-4296-a5c9-826fbee83842.jpg?v=1794565963","url":"https:\/\/www.solidspare.com\/products\/4045m08700-wiseco-std-piston-kit-for-yamaha-sr500-1978-1981-87-00-mm-10-1-cr","provider":"Solid Spare","version":"1.0","type":"link"}