{"product_id":"namura-standard-bore-top-end-repair-kit-size-a-for-yamaha-yz250fx-2015-2019-77mm","title":"Namura Standard Bore Top End Repair Kit Size A for Yamaha YZ250FX 2015-2019 77mm","description":"\u003ch2\u003eNamura Standard Bore Top End Repair Kit Size A for Yamaha YZ250FX\u003c\/h2\u003e\u003cp\u003eThis Namura Standard Bore Top End Repair Kit Size A is a direct replacement for the Yamaha YZ250FX 2015-2019, featuring a 77mm bore size and engineered to restore compression and power.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe Namura Standard Bore Top End Repair Kit Size A provides all necessary components for a complete top-end rebuild on the Yamaha YZ250FX. This 77mm kit is designed to renew cylinder compression and extend engine life for off-road riders and racers. The Standard Bore Top End Repair Kit ensures reliable performance season after season.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e77mm bore size matches OEM specifications for precise fitment\u003c\/li\u003e\n\u003cli\u003eSize A classification ensures correct piston-to-cylinder clearance\u003c\/li\u003e\n\u003cli\u003ePremium materials resist wear and heat for extended service intervals\u003c\/li\u003e\n\u003cli\u003eIncludes piston, rings, wrist pin, and circlips for a complete rebuild\u003c\/li\u003e\n\u003cli\u003eEngineered for consistent compression and horsepower restoration\u003c\/li\u003e\n\u003cli\u003eDirect replacement design simplifies installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Yamaha YZ250FX 2015\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ250FX 2016\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ250FX 2017\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ250FX 2018\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ250FX 2019\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eOff-road motocross and enduro racing\u003c\/li\u003e\n\u003cli\u003eTrail riding and recreational off-road use\u003c\/li\u003e\n\u003cli\u003eTop-end engine rebuilds after high-hour usage\u003c\/li\u003e\n\u003cli\u003eCompetitive racing requiring reliable engine performance\u003c\/li\u003e\n\u003cli\u003eMaintenance of Yamaha YZ250FX dirt bikes\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\u003eSize A (77mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e77mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKit Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard Bore Top End Repair Kit\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 What is included in this repair kit? \u003cstrong\u003eA:\u003c\/strong\u003e The kit includes a piston, rings, wrist pin, circlips, and all necessary gaskets and seals for a complete top-end rebuild.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this kit work with the 2019 model year? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the Namura Standard Bore Top End Repair Kit Size A fits all Yamaha YZ250FX models from 2015 through 2019.\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":44949894987862,"sku":"SZ1F16011","price":351.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_76035111-05ab-4f6a-8610-51c1a826076a.jpg?v=1781401044","url":"https:\/\/www.solidspare.com\/products\/namura-standard-bore-top-end-repair-kit-size-a-for-yamaha-yz250fx-2015-2019-77mm","provider":"Solid Spare","version":"1.0","type":"link"}