{"product_id":"677m06850-wiseco-020-piston-kit-for-yamaha-yz250-wr250-1992-1998-68-50-mm","title":"677M06850 Wiseco .020 Piston Kit for Yamaha YZ250 WR250 1992-1998 68.50 mm","description":"\u003ch2\u003eWiseco .020 Piston Kit for Yamaha YZ250 \u0026amp; WR250\u003c\/h2\u003e\u003cp\u003eThis Wiseco .020 oversize piston kit, part 677M06850, measures 68.50 mm and is built for the Yamaha YZ250 and WR250 two-stroke engines from 1992 through 1998.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis Wiseco .020 piston kit for Yamaha YZ250 and WR250 models restores top-end compression in engines that need a fresh bore. The 68.50 mm oversize piston works with a matching rebore, letting you refresh a worn cylinder rather than replace it. It suits riders and mechanics rebuilding 1992 to 1998 YZ250 and WR250 two-strokes.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eForged aluminum construction for strength under high-rpm two-stroke loads\u003c\/li\u003e\n\u003cli\u003e.020 inch oversize 68.50 mm diameter for use after cylinder reboring\u003c\/li\u003e\n\u003cli\u003eKit includes piston, rings, wrist pin, and circlips for a complete top-end rebuild\u003c\/li\u003e\n\u003cli\u003eDesigned to match the 677M series profile for the YZ250 and WR250 engine\u003c\/li\u003e\n\u003cli\u003eMachined ring grooves for consistent ring seal and compression\u003c\/li\u003e\n\u003cli\u003eCross-reference part number 677M06850 for easy verification\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Yamaha YZ250 1992-1998\u003c\/li\u003e\n\u003cli\u003efor Yamaha WR250 1992-1998\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTop-end rebuilds after cylinder wear or scoring\u003c\/li\u003e\n\u003cli\u003eMotocross and off-road engine refresh on 1992-1998 YZ250 models\u003c\/li\u003e\n\u003cli\u003eTrail and enduro servicing on WR250 two-strokes\u003c\/li\u003e\n\u003cli\u003eRebore and hone jobs requiring an oversize piston\u003c\/li\u003e\n\u003cli\u003eRider or shop-level two-stroke maintenance\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\u003e677M06850\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePiston Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e68.50 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOversize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.020 inch\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\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Models\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYamaha YZ250 \u0026amp; WR250 1992-1998\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 piston need a rebore? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, at .020 inch oversize the cylinder must be bored and honed to match the 68.50 mm piston before assembly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is this an original Yamaha part? \u003cstrong\u003eA:\u003c\/strong\u003e No, this is a Wiseco piston kit made for Yamaha YZ250 and WR250 engines and is not an original manufacturer part.\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":51140051140694,"sku":"OO1C22492","price":417.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_a903a3a7-6fac-4d83-9fbf-3d3ade38dcd8.jpg?v=1794565927","url":"https:\/\/www.solidspare.com\/products\/677m06850-wiseco-020-piston-kit-for-yamaha-yz250-wr250-1992-1998-68-50-mm","provider":"Solid Spare","version":"1.0","type":"link"}