{"product_id":"4982m08300-wiseco-6-mm-piston-kit-for-yamaha-yz250f-2001-2011-83-00-mm-13-1-cr","title":"4982M08300 Wiseco +6 mm Piston Kit for Yamaha YZ250F 2001-2011 83.00 mm 13:1 CR","description":"\u003ch2\u003e+6 mm Piston Kit for Yamaha YZ250F\u003c\/h2\u003e\u003cp\u003eThis Wiseco +6 mm piston kit for Yamaha YZ250F delivers an 83.00mm forged piston with a 13:1 compression ratio, cross-referenced under part number 4982M08300.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis +6 mm piston kit for Yamaha YZ250F increases displacement for 2001-2011 four-stroke motocross engines. The 83.00mm forged piston runs a 13:1 compression ratio for added torque and stronger pull out of corners. Engine builders choose this big bore piston kit for Yamaha YZ250F projects that need more displacement without sacrificing reliability.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eForged aluminum construction for strength under increased cylinder pressure\u003c\/li\u003e\n\u003cli\u003e83.00mm oversize bore for a +6 mm displacement gain\u003c\/li\u003e\n\u003cli\u003e13:1 compression ratio suited to big bore builds\u003c\/li\u003e\n\u003cli\u003eKit includes piston, rings, wrist pin, and circlips\u003c\/li\u003e\n\u003cli\u003eCross-reference 4982M08300 for verified application matching\u003c\/li\u003e\n\u003cli\u003ePrecision machined for consistent ring seal and bore fit\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Yamaha YZ250F 2001\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ250F 2002\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ250F 2003\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ250F 2004\u003c\/li\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\u003cli\u003efor Yamaha YZ250F 2008\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ250F 2009\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ250F 2010\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ250F 2011\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBig bore top-end builds for added displacement\u003c\/li\u003e\n\u003cli\u003eRace engine assembly where class rules allow overbores\u003c\/li\u003e\n\u003cli\u003eRebuilding high-hour YZ250F engines with cylinder work\u003c\/li\u003e\n\u003cli\u003eRestoring and increasing compression during a full top-end service\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\u003e4982M08300\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e83.00mm (+6 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\u003e13:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePiston Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eForged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFitment Years\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2001-2011\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 require cylinder machining? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, a +6 mm oversize piston needs the cylinder bored and replated to match the 83.00mm bore. Have a qualified machine shop set piston-to-cylinder clearance before assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does the kit include rings and pin? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, this piston kit ships with the piston, rings, wrist pin, and circlips. Verify ring end gap and clearance during assembly.\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":51139969777750,"sku":"OO1C22371","price":527.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_1cb92748-c374-42ff-9591-a537b8edbaab.jpg?v=1794565840","url":"https:\/\/www.solidspare.com\/products\/4982m08300-wiseco-6-mm-piston-kit-for-yamaha-yz250f-2001-2011-83-00-mm-13-1-cr","provider":"Solid Spare","version":"1.0","type":"link"}