{"product_id":"797m05450-wiseco-piston-kit-020-for-yamaha-yz125-2002-2004-54-50-mm","title":"797M05450 Wiseco Piston Kit .020 for Yamaha YZ125 2002-2004 54.50 mm","description":"\u003ch2\u003eWiseco .020 Piston Kit for Yamaha YZ125\u003c\/h2\u003e\u003cp\u003eThis Wiseco .020 overbore piston kit for Yamaha YZ125 restores top end performance on 2002 to 2004 models, cross referencing 797M05450 and a 54.50mm bore size.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis piston kit for Yamaha YZ125 gives riders a complete top end solution for 2002 through 2004 models that need a fresh bore and piston. Built to Wiseco spec at .020 over, the 54.50mm kit replaces worn or damaged components and brings compression and power back to spec. It suits riders doing their own top end work and shops rebuilding 125cc two stroke motocross engines.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eForged piston construction for strength under high rpm two stroke loads\u003c\/li\u003e\n\u003cli\u003e.020 overbore sizing at 54.50mm to clean up worn cylinder walls\u003c\/li\u003e\n\u003cli\u003eKit includes piston, rings, wrist pin, and circlips for a complete top end refresh\u003c\/li\u003e\n\u003cli\u003eCross references 797M05450 for easy parts matching\u003c\/li\u003e\n\u003cli\u003eDesigned for the 2002 to 2004 Yamaha YZ125 engine platform\u003c\/li\u003e\n\u003cli\u003ePrecision machined ring grooves for consistent sealing and compression\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Yamaha YZ125 2002\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ125 2003\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ125 2004\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTop end rebuilds after a piston seizure or worn rings\u003c\/li\u003e\n\u003cli\u003eCylinder reconditioning when a bore job is needed\u003c\/li\u003e\n\u003cli\u003eRoutine race season maintenance on two stroke motocross bikes\u003c\/li\u003e\n\u003cli\u003eRestoring compression on a high hour trail or track machine\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number(s)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e797M05450\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e54.50mm (.020 over)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePiston Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMachine Fitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003efor Yamaha YZ125 2002-2004\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 kit require a cylinder bore? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, a .020 over piston is sized for a cylinder that has been bored and honed to match, so confirm machine work is done before install.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e What comes in the kit? \u003cstrong\u003eA:\u003c\/strong\u003e A Wiseco piston kit of this type typically includes the piston, rings, wrist pin, and circlips needed for a top end rebuild.\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":51140068638806,"sku":"OO1C22504","price":318.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_1c3273eb-0d7a-490f-9f84-dc0aea1f090d.jpg?v=1794565919","url":"https:\/\/www.solidspare.com\/products\/797m05450-wiseco-piston-kit-020-for-yamaha-yz125-2002-2004-54-50-mm","provider":"Solid Spare","version":"1.0","type":"link"}