{"product_id":"namura-standard-bore-top-end-rebuild-kit-size-b-for-yamaha-yz250f-2014-2018-77mm","title":"Namura Standard Bore Top End Rebuild Kit Size B for Yamaha YZ250F 2014-2018 77mm","description":"\u003ch2\u003eNamura Standard Bore Top End Rebuild Kit Size B for Yamaha YZ250F\u003c\/h2\u003e\u003cp\u003eThis top end rebuild kit consists of a standard bore size B piston (77mm) along with rings, wrist pin, and gaskets, designed for the Yamaha YZ250F from 2014-2018.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis Namura standard bore top end rebuild kit size B (77mm) provides all the essential components for reconditioning the cylinder head of a Yamaha YZ250F motorcycle built between 2014 and 2018. The kit includes a piston, rings, wrist pin, circlips, and gasket set to restore compression and performance. It is ideal for riders performing top-end maintenance or rebuilding the engine after wear.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eStandard bore size B (77mm) for exact fit\u003c\/li\u003e\n\u003cli\u003eComplete kit: piston, rings, wrist pin, circlips, and gaskets\u003c\/li\u003e\n\u003cli\u003eHigh-quality aluminum alloy piston\u003c\/li\u003e\n\u003cli\u003eEngineered to meet OEM tolerances\u003c\/li\u003e\n\u003cli\u003eDesigned for improved throttle response and reliability\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Yamaha YZ250F (2014-2018)\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMotocross racing and trail riding\u003c\/li\u003e\n\u003cli\u003eTop-end engine rebuilds and overhauls\u003c\/li\u003e\n\u003cli\u003eCompetitive off-road riding\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 Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e77mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePiston Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eB (standard bore)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKit Includes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePiston, rings, wrist pin, circlips, gaskets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYamaha YZ250F (2014-2018)\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 Will this kit work on a 2015 Yamaha YZ250F? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the 2015 model is within the 2014-2018 range; however, always confirm your engine's serial number and current bore condition before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can I use this kit for a high-compression build? \u003cstrong\u003eA:\u003c\/strong\u003e This is a standard compression size B piston; for high-compression requirements, consider a different piston grade or consult with a technician.\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":44949893972054,"sku":"SZ1F15984","price":351.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_59329bdf-d222-4cd4-99f0-b9e91db7c267.jpg?v=1781401010","url":"https:\/\/www.solidspare.com\/products\/namura-standard-bore-top-end-rebuild-kit-size-b-for-yamaha-yz250f-2014-2018-77mm","provider":"Solid Spare","version":"1.0","type":"link"}