{"product_id":"namura-standard-bore-size-a-top-end-repair-kit-for-yamaha-yz65-2018-2024-43-5mm","title":"Namura Standard Bore Size A Top End Repair Kit for Yamaha YZ65 2018-2024 43.5mm","description":"\u003ch2\u003eNamura Standard Bore Size A Top End Repair Kit for Yamaha YZ65\u003c\/h2\u003e\u003cp\u003eThis Namura Standard Bore Size A Top End Repair Kit is a complete replacement top-end assembly for Yamaha YZ65 motorcycles, covering model years 2018 through 2024 and featuring a 43.5mm bore size.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe Namura Standard Bore Size A Top End Repair Kit for Yamaha YZ65 provides all necessary components to rebuild the cylinder and piston assembly for 2018-2024 YZ65 models. This top end repair kit includes a piston, rings, wrist pin, and circlips, ensuring your 43.5mm bore engine delivers consistent compression and power. Designed as a direct replacement, it restores performance to factory specifications.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e43.5mm bore piston matched to stock cylinder dimensions\u003c\/li\u003e\n\u003cli\u003eIncludes premium ring set for optimal seal and longevity\u003c\/li\u003e\n\u003cli\u003eHeat-treated wrist pin and circlips for secure installation\u003c\/li\u003e\n\u003cli\u003ePrecision-machined to Namura's quality standards\u003c\/li\u003e\n\u003cli\u003eCompatible with original Yamaha cylinder and head components\u003c\/li\u003e\n\u003cli\u003eKit contains all wear items needed for a complete top-end rebuild\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Yamaha YZ65 (2018, 2019, 2020, 2021, 2022, 2023, 2024 models)\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMotocross racing and practice sessions\u003c\/li\u003e\n\u003cli\u003eEnduro and off-road competition\u003c\/li\u003e\n\u003cli\u003eYouth bike maintenance and rebuilds\u003c\/li\u003e\n\u003cli\u003eRestoring compression after hours of use\u003c\/li\u003e\n\u003cli\u003eSeasonal engine overhauls\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e43.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this kit include a cylinder or gaskets? \u003cstrong\u003eA:\u003c\/strong\u003e This top end repair kit supplies the piston, rings, wrist pin, and circlips only; you will need to reuse your existing cylinder or purchase a separate cylinder and gasket set for a full rebuild.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can I use this kit on a Yamaha YZ65 from before 2018? \u003cstrong\u003eA:\u003c\/strong\u003e This kit is specifically engineered for 2018-2024 YZ65 models with a 43.5mm bore; earlier YZ65 models may have different bore sizes or porting, so check your year and serial number before ordering.\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":44890489913430,"sku":"SZ1F11843","price":136.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_2a658cc3-e71c-4b45-871d-30d51b47b813.jpg?v=1781140590","url":"https:\/\/www.solidspare.com\/products\/namura-standard-bore-size-a-top-end-repair-kit-for-yamaha-yz65-2018-2024-43-5mm","provider":"Solid Spare","version":"1.0","type":"link"}