{"product_id":"namura-standard-bore-top-end-rebuild-kit-size-a-for-yamaha-yz450f-2023-2025-97mm","title":"Namura Standard Bore Top End Rebuild Kit Size A for Yamaha YZ450F 2023-2025 97mm","description":"\u003ch2\u003eStandard Bore Top End Rebuild Kit Size A for Yamaha\u003c\/h2\u003e\u003cp\u003eThis top end rebuild kit includes a complete set of components for restoring the cylinder and piston assembly on compatible Yamaha YZ450F models.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe Standard Bore Top End Rebuild Kit Size A is a comprehensive replacement set designed to restore top end performance on Yamaha YZ450F motorcycles from 2023 to 2025. This kit includes all necessary gaskets, seals, and piston components to refresh the cylinder head area. Riders seeking reliable OEM-spec restoration will find this Standard Bore Top End Rebuild Kit Size A a straightforward solution.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecision-machined piston for optimal cylinder sealing\u003c\/li\u003e\n\u003cli\u003eHigh-quality ring set reduces blow-by and improves compression\u003c\/li\u003e\n\u003cli\u003eIncludes gaskets and seals manufactured to OEM specifications\u003c\/li\u003e\n\u003cli\u003eSize A bore maintains factory clearances for consistent power delivery\u003c\/li\u003e\n\u003cli\u003eKit components are engineered for durability under high-RPM loads\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Yamaha YZ450F (2023-2025, 97mm bore)\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMotocross track racing requiring frequent top-end refresh\u003c\/li\u003e\n\u003cli\u003eOff-road desert riding where sustained high RPMs are common\u003c\/li\u003e\n\u003cli\u003eEnduro competition needing reliable power across varied terrain\u003c\/li\u003e\n\u003cli\u003eTrail riding and recreational off-road use\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKit Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard Bore Top End Rebuild Kit Size A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e97mm\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 YZ450F 2023-2025\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 Is professional installation required for this kit? \u003cstrong\u003eA:\u003c\/strong\u003e While experienced mechanics can install it, professional service is recommended to ensure proper ring end gap and torque specifications for optimal performance and longevity.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this kit include a new piston pin and circlips? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the Standard Bore Top End Rebuild Kit Size A includes the piston pin and circlips necessary for a complete top end rebuild on your Yamaha YZ450F.\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":44949899542614,"sku":"SZ1F16096","price":373.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_bb355e42-a936-4cbb-945e-deb90d36e3e0.jpg?v=1781401162","url":"https:\/\/www.solidspare.com\/products\/namura-standard-bore-top-end-rebuild-kit-size-a-for-yamaha-yz450f-2023-2025-97mm","provider":"Solid Spare","version":"1.0","type":"link"}