{"product_id":"yzf-wrf-piston-rings-250-4t-01-04","title":"YZF-WRF Piston Rings 250 4T 01-04","description":"\u003ch2\u003eYZF-WRF Piston Rings 250 4T 01-04\u003c\/h2\u003e\u003cp\u003eThe YZF-WRF Piston Rings 250 4T 01-04 are a piston ring set for Yamaha 250 cc 4-stroke engines, matching the standard 77.00 mm bore used on YZ250F and WR250F models from 2001 to 2004. This set restores correct sealing and compression when used with OEM or ProX-type pistons in these engines.\u003c\/p\u003e\u003ch3\u003eTechnical specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine type:\u003c\/strong\u003e 4-stroke\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplacement class:\u003c\/strong\u003e 250 cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore diameter:\u003c\/strong\u003e 77.00 mm (standard)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication models:\u003c\/strong\u003e Yamaha YZ250F \/ WR250F 250 4T 01-04\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston compatibility:\u003c\/strong\u003e OEM and ProX-type pistons for 77.00 mm bore\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eUse context\u003c\/h3\u003e\u003cp\u003eUse this piston ring set when rebuilding the top end to address loss of compression, increased oil consumption, or blow-by on Yamaha YZ250F and WR250F engines from 2001–2004. It is typically replaced together with the piston, pin, and circlips as part of a complete top-end refresh.\u003c\/p\u003e\u003ch3\u003eInstallation\u003c\/h3\u003e\u003cp\u003eThis piston ring set installs as a direct fit for the specified 77.00 mm bore pistons; follow the Yamaha service manual or piston manufacturer data for ring end-gap checks, ring orientation, and cylinder condition before assembly, using appropriate measuring tools and torque values.\u003c\/p\u003e","brand":"Parts Europe","offers":[{"title":"Default Title","offer_id":53894136758615,"sku":"54415007700TK","price":10.24,"currency_code":"EUR","in_stock":true}],"url":"https:\/\/motosports.lv\/en\/products\/yzf-wrf-piston-rings-250-4t-01-04","provider":"Motosports","version":"1.0","type":"link"}