{"product_id":"namura-standard-bore-size-c-top-end-repair-kit-for-yamaha-yz65-2018-2024-43-5mm","title":"Namura Standard Bore Size C Top End Repair Kit for Yamaha YZ65 2018-2024 43.5mm","description":"\u003ch2\u003eNamura Standard Bore Size C Top End Repair Kit for Yamaha\u003c\/h2\u003e\u003cp\u003eThis top end repair kit is a complete cylinder re‑build package for the Yamaha YZ65, providing a standard bore piston, rings, pin, and clips for a fresh engine top end.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe Namura Standard Bore Size C top end repair kit is engineered for the Yamaha YZ65 from 2018 through 2024, delivering a precise 43.5mm piston assembly to restore compression and power. This kit replaces the OEM top end components with a reliable aftermarket solution.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCast from high‑strength aluminum‑silicon alloy for durability\u003c\/li\u003e\n\u003cli\u003eStandard bore size C specification matches OEM dimensions exactly\u003c\/li\u003e\n\u003cli\u003eIncludes a matched ring set for consistent ring seal\u003c\/li\u003e\n\u003cli\u003eWrist pin and circlips are included for a complete installation\u003c\/li\u003e\n\u003cli\u003eLightweight design reduces reciprocating mass\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Yamaha YZ65 (2018‑2024)\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn‑The‑Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMotocross and off‑road racing on two‑stroke dirt bikes\u003c\/li\u003e\n\u003cli\u003eReplacing a worn or damaged top end during routine engine maintenance\u003c\/li\u003e\n\u003cli\u003eRestoring compression and power in a high‑hour Yamaha YZ65\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\u003e43.5mm (Standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eKit Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTop End Repair Kit (Size C)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eYears\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2018‑2024\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 this a complete top end kit with cylinder and gaskets? \u003cstrong\u003eA:\u003c\/strong\u003e No, this kit includes only the piston, rings, wrist pin, and clips; you will need to purchase the cylinder, gaskets, and other components separately.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can I use this kit for a YZ65 with a modified cylinder? \u003cstrong\u003eA:\u003c\/strong\u003e This is a standard bore size C piston; it is intended for a cylinder that has not been bored oversized. If your cylinder has been modified, you must match the piston to the actual bore size.\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":44890489749590,"sku":"SZ1F11839","price":136.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_943d2da0-c05c-457c-ae9a-7b6c1704ba4a.jpg?v=1781140585","url":"https:\/\/www.solidspare.com\/products\/namura-standard-bore-size-c-top-end-repair-kit-for-yamaha-yz65-2018-2024-43-5mm","provider":"Solid Spare","version":"1.0","type":"link"}