{"product_id":"namura-standard-bore-size-c-piston-kit-for-yamaha-yz250-wr250-1992-1998-68mm","title":"Namura Standard Bore Size C Piston Kit for Yamaha YZ250 \u0026 WR250 1992-1998 - 68mm","description":"\u003ch2\u003eNamura Standard Bore Size C Piston Kit for Yamaha YZ250 \u0026amp; WR250\u003c\/h2\u003e\u003cp\u003eThis Namura standard bore size C piston kit replaces the OEM piston in Yamaha YZ250 and WR250 two-stroke engines from 1992 to 1998, offering a reliable replacement for motocross and trail riding.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis Namura standard bore size C piston kit is a direct-fit replacement for Yamaha YZ250 and WR250 models from 1992 through 1998. It provides a precise 68mm bore diameter and includes the piston, rings, and wrist pin for a complete top-end rebuild. Riders looking to restore compression and power will find this piston kit a cost-effective solution for their two-stroke dirt bike.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eManufactured from high-strength aluminum alloy for durability\u003c\/li\u003e\n\u003cli\u003ePrecision-machined to standard bore size C specifications\u003c\/li\u003e\n\u003cli\u003eIncludes premium piston rings for optimal sealing\u003c\/li\u003e\n\u003cli\u003eWrist pin and circlips included for complete installation\u003c\/li\u003e\n\u003cli\u003eDesigned to meet OEM tolerances for reliable performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Yamaha YZ250 (1992-1998)\u003c\/li\u003e\n\u003cli\u003efor Yamaha WR250 (1992-1998)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eMotocross racing and off-road competition\u003c\/li\u003e\n\u003cli\u003eTrail riding and enduro events\u003c\/li\u003e\n\u003cli\u003eRebuilding worn two-stroke engines for restored power\u003c\/li\u003e\n\u003cli\u003eGeneral maintenance and top-end refresh for dirt bikes\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\u003e68mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard Bore Size C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYamaha YZ250 \u0026amp; WR250 (1992-1998)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNamura\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 Does this piston kit include a needle bearing for the wrist pin? \u003cstrong\u003eA:\u003c\/strong\u003e The kit includes the piston, rings, wrist pin, and circlips; the needle bearing for the connecting rod is typically sold separately.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Should I measure the cylinder bore before installation? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, always measure the cylinder bore to ensure it is within factory specification for a 68mm piston; excessive wear may require boring or re-sleeving.\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":44890502299734,"sku":"SZ1F12019","price":142.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_0f996375-5b51-4526-be64-e7d6baa0abc3.jpg?v=1781140837","url":"https:\/\/www.solidspare.com\/products\/namura-standard-bore-size-c-piston-kit-for-yamaha-yz250-wr250-1992-1998-68mm","provider":"Solid Spare","version":"1.0","type":"link"}