{"product_id":"40072m07700-wiseco-std-piston-kit-for-yamaha-yz250f-2012-2013-77-00mm-13-5-1-cr","title":"40072M07700 Wiseco Std Piston Kit for Yamaha YZ250F 2012-2013 77.00mm 13.5:1 CR","description":"\u003ch2\u003ePiston Kit for Yamaha YZ250F\u003c\/h2\u003e\u003cp\u003eThis Wiseco Standard Piston Kit for Yamaha YZ250F is a 77.00mm forged piston assembly with a 13.5:1 compression ratio, supplied with rings, pin, and clips to rebuild the top end of the engine; it carries part number 40072M07700.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis Wiseco Standard Piston Kit for Yamaha YZ250F restores compression and piston-to-cylinder sealing on 2012 to 2013 models. Each piston kit for Yamaha YZ250F is machined to the original 77.00mm bore size and 13.5:1 compression ratio, making it a direct replacement for a worn or damaged piston. It suits riders and mechanics handling routine top-end rebuilds on the YZ250F motocross platform.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eForged piston construction for strength under high-rpm motocross loads\u003c\/li\u003e\n\u003cli\u003e77.00mm standard bore diameter matches the original cylinder size\u003c\/li\u003e\n\u003cli\u003e13.5:1 compression ratio for strong mid-range and top-end response\u003c\/li\u003e\n\u003cli\u003eKit includes piston, rings, wrist pin, and circlips for a complete top-end refresh\u003c\/li\u003e\n\u003cli\u003eWiseco part number 40072M07700 identifies the exact fitment\u003c\/li\u003e\n\u003cli\u003eDesigned for the Yamaha YZ250F 250cc four-stroke engine\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Yamaha YZ250F 2012\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ250F 2013\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTop-end rebuilds after piston wear or loss of compression\u003c\/li\u003e\n\u003cli\u003eMotocross and off-road riding on the YZ250F\u003c\/li\u003e\n\u003cli\u003eRefresh during routine engine maintenance or race-season servicing\u003c\/li\u003e\n\u003cli\u003eCylinder service when the bore remains within standard specification\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\u003e40072M07700\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e77.00mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompression Ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e13.5:1\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\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKit Contents\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePiston, rings, wrist pin, circlips\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 kit include the rings and pin? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, this Wiseco piston kit ships as a complete assembly with piston, rings, wrist pin, and circlips for the top-end rebuild.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can I fit this if my cylinder is worn? \u003cstrong\u003eA:\u003c\/strong\u003e This is a standard 77.00mm bore piston, so the cylinder should be measured and honed or replated to spec before installation.\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":51139997728854,"sku":"OO1C22405","price":461.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_60644f1f-9336-4905-91e5-6d7a75bfec65.jpg?v=1794565851","url":"https:\/\/www.solidspare.com\/products\/40072m07700-wiseco-std-piston-kit-for-yamaha-yz250f-2012-2013-77-00mm-13-5-1-cr","provider":"Solid Spare","version":"1.0","type":"link"}