{"product_id":"wiseco-std-piston-crankshaft-gasket-set-77-00-mm-for-yamaha-yz250f-2003-2004-12","title":"Wiseco Std Piston Crankshaft Gasket Set 77.00 mm for Yamaha YZ250F 2003-2004 12.","description":"\u003ch2\u003eWiseco Std Piston\/Crankshaft\/Gasket Set for Yamaha\u003c\/h2\u003e\u003cp\u003eThis Wiseco Std Piston\/Crankshaft\/Gasket Set for Yamaha is a comprehensive engine rebuild kit featuring a 77.00 mm standard bore piston at 12.5:1 compression, a crankshaft, and a matching gasket set.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis Wiseco Std Piston\/Crankshaft\/Gasket Set for Yamaha provides all major components needed to rebuild the YZ250F 2003-2004 engine. The 77.00 mm standard bore piston at 12.5:1 compression returns factory power, while the crankshaft and gasket set cover both top and bottom end work. It is suited to riders and mechanics handling complete engine service.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eForged piston construction for strength under load\u003c\/li\u003e\n\u003cli\u003e77.00 mm standard bore size for stock cylinders\u003c\/li\u003e\n\u003cli\u003e12.5:1 compression ratio for factory-spec power\u003c\/li\u003e\n\u003cli\u003eCrankshaft included for bottom end rebuilds\u003c\/li\u003e\n\u003cli\u003eComplete gasket set for a sealed assembly\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Yamaha YZ250F 2003\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ250F 2004\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTop end rebuilds after piston or ring wear\u003c\/li\u003e\n\u003cli\u003eBottom end service for worn crankshaft bearings\u003c\/li\u003e\n\u003cli\u003eEngine refresh on motocross bikes\u003c\/li\u003e\n\u003cli\u003eRestoring stock compression after tear down\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\u003eWiseco Std Piston\/Crankshaft\/Gasket Set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e77.00 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\u003e12.5:1\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\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 cover both top and bottom end work? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the set includes a standard bore piston, crankshaft, and gasket set for a complete rebuild.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What compression does this piston provide? \u003cstrong\u003eA:\u003c\/strong\u003e It delivers a 12.5:1 compression ratio at the 77.00 mm standard bore size, matching the original engine spec.\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":51143012876374,"sku":"OO1C24193","price":1957.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_4b2c5567-5d86-4dad-8c0b-55591a46c121.jpg?v=1794566935","url":"https:\/\/www.solidspare.com\/products\/wiseco-std-piston-crankshaft-gasket-set-77-00-mm-for-yamaha-yz250f-2003-2004-12","provider":"Solid Spare","version":"1.0","type":"link"}