{"product_id":"namura-020-over-bore-top-end-kit-for-yamaha-timberwolf-250-1992-2000-71-5mm","title":"Namura .020 Over Bore Top End Kit for Yamaha Timberwolf 250 1992-2000 71.5mm","description":"\u003ch2\u003eNamura .020 Over Bore Top End Kit for Yamaha Timberwolf 250\u003c\/h2\u003e\u003cp\u003eThis .020 over bore top end kit is a complete cylinder and piston assembly for the Yamaha Timberwolf 250 ATV, designed to restore compression and power. It includes a piston, rings, pin, and circlips, with OEM cross-reference numbers that ensure a direct replacement. The 71.5mm bore size provides a dependable overbore option for worn engines.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis Namura .020 over bore top end kit is a precision-engineered replacement for the Yamaha Timberwolf 250, covering models from 1992 to 2000. It delivers the critical components needed to rebuild the top end and bring an ATV engine back to life, using quality materials and exacting tolerances. The kit includes a piston, rings, wrist pin, and circlips for a complete top-end overhaul.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eManufactured from high-silicon aluminum alloy for improved heat dissipation and durability\u003c\/li\u003e\n\u003cli\u003ePrecision-machined piston skirt reduces friction and extends engine life\u003c\/li\u003e\n\u003cli\u003eIncludes moly-coated piston rings for reduced wear and better sealing\u003c\/li\u003e\n\u003cli\u003eOversized .020 over bore allows resurfacing of a worn cylinder\u003c\/li\u003e\n\u003cli\u003eKit includes all necessary components for a straightforward installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Yamaha Timberwolf 250 (1992-2000)\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCommonly used in ATV trail riding and utility work where engine reliability is critical\u003c\/li\u003e\n\u003cli\u003eIdeal for engine rebuilds after top-end wear or piston seizure\u003c\/li\u003e\n\u003cli\u003eWorks well for farm, ranch, and recreational vehicles that require dependable power\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e71.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOverbore\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\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYamaha Timberwolf 250 1992-2000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRefer to OEM cross-reference\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 a cylinder? \u003cstrong\u003eA:\u003c\/strong\u003e No, this is a top end kit including piston, rings, pin, and circlips; the cylinder must be ordered separately or reused if within spec.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can I install this without machining? \u003cstrong\u003eA:\u003c\/strong\u003e The cylinder bore must be machined to match the .020 over size; professional installation is recommended.\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":44890936049750,"sku":"SZ1F13632","price":175.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_7d6e15ae-e2ff-4345-b67c-d6d59bbc3e86.jpg?v=1781144379","url":"https:\/\/www.solidspare.com\/products\/namura-020-over-bore-top-end-kit-for-yamaha-timberwolf-250-1992-2000-71-5mm","provider":"Solid Spare","version":"1.0","type":"link"}