{"product_id":"605m06800-wiseco-std-piston-kit-for-yamaha-yz250-1988-1991-68-00mm","title":"605M06800 Wiseco Std Piston Kit for Yamaha YZ250 1988-1991 68.00mm","description":"\u003ch2\u003ePiston Kit for Yamaha YZ250\u003c\/h2\u003e\u003cp\u003eThis Wiseco standard piston kit, part 605M06800, is a 68.00 mm piston assembly that restores factory compression and top-end performance to your two-stroke engine.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis piston kit for Yamaha YZ250 is a standard bore replacement designed to refresh a worn top end. It uses a 68.00 mm standard diameter to match the original cylinder bore without machining. Riders and mechanics rebuilding a YZ250 top end will find this piston kit a direct-fit solution for their rebuild.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eForged aluminum construction for high strength under combustion loads\u003c\/li\u003e\n\u003cli\u003e68.00 mm standard bore diameter\u003c\/li\u003e\n\u003cli\u003eKit includes piston, rings, pin, and circlips for a complete rebuild\u003c\/li\u003e\n\u003cli\u003eDesigned to restore compression and top-end power\u003c\/li\u003e\n\u003cli\u003ePrecision machined skirt for consistent cylinder wall contact\u003c\/li\u003e\n\u003cli\u003eHeat-treated for durability in high-rpm two-stroke operation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Yamaha YZ250 1988-1991\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTop-end rebuilds after piston wear or seizure\u003c\/li\u003e\n\u003cli\u003eStandard bore cylinder refresh without machining\u003c\/li\u003e\n\u003cli\u003eMotocross and off-road racing maintenance\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\u003e605M06800\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e68.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOversize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMachine Fitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003efor Yamaha YZ250 1988-1991\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 everything needed for a top-end rebuild? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, it comes with the piston, rings, wrist pin, and circlips. Gaskets and bearings are typically sold separately.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Will this piston fit an oversize cylinder? \u003cstrong\u003eA:\u003c\/strong\u003e No, this is a standard bore piston requiring a cylinder at 68.00 mm. Confirm your cylinder's current bore 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":51140035772502,"sku":"OO1C22475","price":435.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_99d81f02-fb42-4944-b587-7a10e8745801.jpg?v=1794565907","url":"https:\/\/www.solidspare.com\/products\/605m06800-wiseco-std-piston-kit-for-yamaha-yz250-1988-1991-68-00mm","provider":"Solid Spare","version":"1.0","type":"link"}