{"product_id":"4882m07700-wiseco-std-piston-kit-for-yamaha-yz250f-2005-2007-77-00mm-12-5-1","title":"4882M07700 Wiseco Std Piston Kit for Yamaha YZ250F 2005-2007 77.00mm 12.5:1","description":"\u003ch2\u003eWiseco Std Piston Kit for Yamaha YZ250F\u003c\/h2\u003e\u003cp\u003eThis Wiseco standard piston kit for Yamaha YZ250F restores top-end compression on 2005-2007 models, using the 77.00mm bore and 12.5:1 compression ratio matched to OEM cross-reference 4882M07700.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis Wiseco Std Piston Kit for Yamaha YZ250F is a direct-fit top-end replacement built to bring worn four-stroke engines back to spec. The kit delivers a 77.00mm standard bore piston with a 12.5:1 compression ratio, cross-referenced to 4882M07700. It suits riders and mechanics rebuilding a YZ250F for trail, track, or practice use.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e77.00mm standard bore size matches the factory cylinder without overboring\u003c\/li\u003e\n\u003cli\u003e12.5:1 compression ratio for strong mid-range and top-end pull\u003c\/li\u003e\n\u003cli\u003eForged piston construction for strength under high-rpm four-stroke loads\u003c\/li\u003e\n\u003cli\u003eOEM cross-reference 4882M07700 for straightforward parts matching\u003c\/li\u003e\n\u003cli\u003eKit format includes piston, rings, pin, and clips for a complete top-end refresh\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Yamaha YZ250F 2005\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ250F 2006\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ250F 2007\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\u003eRoutine race-season maintenance on motocross bikes\u003c\/li\u003e\n\u003cli\u003eTrail and off-road riding where reliable compression matters\u003c\/li\u003e\n\u003cli\u003eShop and home garage engine refresh projects\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\u003e4882M07700\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 standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompression Ratio\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12.5:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFitment Years\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2005-2007\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 YZ250F\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 Is this a standard bore piston or an overbore? \u003cstrong\u003eA:\u003c\/strong\u003e It is a 77.00mm standard bore piston, so it works with a stock cylinder in good condition. Measure your bore and piston clearance before assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does the kit include rings and a pin? \u003cstrong\u003eA:\u003c\/strong\u003e Piston kits of this type normally ship as a complete top-end set with rings, wrist pin, and clips. Confirm the contents listed by the seller 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":51139952705622,"sku":"OO1C22346","price":439.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_a7a6ce19-f253-4f83-8ebe-0e42474fe4a3.jpg?v=1794565764","url":"https:\/\/www.solidspare.com\/products\/4882m07700-wiseco-std-piston-kit-for-yamaha-yz250f-2005-2007-77-00mm-12-5-1","provider":"Solid Spare","version":"1.0","type":"link"}