{"product_id":"namura-standard-bore-size-b-47-45mm-piston-kit-for-yamaha-yz85-2002-2023-47-5mm","title":"Namura Standard Bore Size B 47.45mm Piston Kit for Yamaha YZ85 2002-2023 47.5mm","description":"\u003ch2\u003eStandard Bore Size B 47.45mm Piston Kit for Yamaha YZ85 2002-2023\u003c\/h2\u003e\u003cp\u003eThis Namura piston kit is a direct replacement for the Yamaha YZ85 two-stroke engine, delivering a precise 47.45mm bore size to restore compression and performance. Designed as a standard bore piston kit, it matches OEM specifications for a seamless rebuild.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe Namura Standard Bore Size B 47.45mm Piston Kit is a complete replacement assembly for the Yamaha YZ85 from 2002 through 2023. This piston kit ensures reliable power output and proper cylinder clearance, making it a direct fit for standard-bore engines. Whether you are rebuilding a top end or refreshing an older machine, this piston kit provides the exact dimensions needed for the YZ85.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecision-machined from high-silicone aluminum alloy for thermal stability and strength\u003c\/li\u003e\n\u003cli\u003eIncludes piston, piston rings, wrist pin, and circlips for a complete top-end set\u003c\/li\u003e\n\u003cli\u003eChrome-plated top ring reduces friction and extends ring life\u003c\/li\u003e\n\u003cli\u003eMatched to stock bore clearance for reliable cold start and warm-up\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Yamaha YZ85 (2002-2023)\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMotocross racing\u003c\/li\u003e\n\u003cli\u003eOff-road trail riding\u003c\/li\u003e\n\u003cli\u003eEnduro and hare scramble events\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\u003e47.45mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize Designation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eB (Standard)\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 Will this piston kit fit my 2015 Yamaha YZ85? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the kit is designed for all YZ85 models from 2002 to 2023, but always confirm your engine serial number before ordering to ensure compatibility.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does the kit include wrist pin bearings or only the pin? \u003cstrong\u003eA:\u003c\/strong\u003e The kit contains the piston, rings, wrist pin, and circlips; wrist pin bearings are not included and should be sourced separately if needed.\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":44890359332950,"sku":"SZ1F10368","price":104.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_d15c907c-7538-4624-b1a2-9b18dadacfd4.jpg?v=1781138291","url":"https:\/\/www.solidspare.com\/products\/namura-standard-bore-size-b-47-45mm-piston-kit-for-yamaha-yz85-2002-2023-47-5mm","provider":"Solid Spare","version":"1.0","type":"link"}