{"product_id":"namura-standard-bore-top-end-repair-kit-size-c-for-yamaha-yz450fx-2024-2025-97mm","title":"Namura Standard Bore Top End Repair Kit Size C for Yamaha YZ450FX 2024-2025 97mm","description":"\u003ch2\u003eNamura Standard Bore Top End Repair Kit Size C for Yamaha\u003c\/h2\u003e\u003cp\u003eThis top end repair kit for the 2024-2025 Yamaha YZ450FX includes a piston, rings, gasket set, and wrist pin to restore cylinder performance at 97mm bore.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe Namura Standard Bore Top End Repair Kit Size C is a complete rebuild solution for the Yamaha YZ450FX, combining a cast piston, rings, gaskets, and wrist pin for a reliable cylinder refresh. Designed for the 97mm bore, this kit replaces worn components to restore compression and power. It suits riders rebuilding their top end after hours of aggressive trail or track use.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCast piston with precise skirt profile for reduced friction and quick break-in\u003c\/li\u003e\n\u003cli\u003ePremium ring set provides consistent cylinder seal and oil control\u003c\/li\u003e\n\u003cli\u003eReinforced wrist pin and clips handle high-rpm loads without failure\u003c\/li\u003e\n\u003cli\u003eComplete gasket set matches OEM sealing requirements for leak-free assembly\u003c\/li\u003e\n\u003cli\u003eBore-specific 97mm sizing ensures proper fitment in the factory cylinder\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Yamaha YZ450FX 2024-2025\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTrail riding and enduro competition where reliable top end performance is critical\u003c\/li\u003e\n\u003cli\u003eMotocross track days requiring a fresh cylinder after extended use\u003c\/li\u003e\n\u003cli\u003eOff-season engine rebuild to maintain peak power and reliability\u003c\/li\u003e\n\u003cli\u003eReplacing worn pistons after piston slap or blow-by is detected\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\u003e97mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYamaha YZ450FX (2024-2025)\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 Can I reuse the old head gasket with this kit? \u003cstrong\u003eA:\u003c\/strong\u003e No, the included gasket set must be used to ensure proper sealing and prevent leaks after installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this kit include the cylinder or only the top end parts? \u003cstrong\u003eA:\u003c\/strong\u003e This is a top end repair kit containing piston, rings, gaskets, and wrist pin; the cylinder is not included and must be inspected separately.\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":44949899411542,"sku":"SZ1F16092","price":373.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_386515de-1a6f-4f00-8489-bf03534e1933.jpg?v=1781401157","url":"https:\/\/www.solidspare.com\/products\/namura-standard-bore-top-end-repair-kit-size-c-for-yamaha-yz450fx-2024-2025-97mm","provider":"Solid Spare","version":"1.0","type":"link"}