{"product_id":"457m04900-wiseco-std-piston-kit-49-00-mm-for-yamaha-yz80-1976-1980","title":"457M04900 Wiseco Std Piston Kit 49.00 mm for Yamaha YZ80 1976-1980","description":"\u003ch2\u003eWiseco Std Piston Kit for Yamaha YZ80\u003c\/h2\u003e\u003cp\u003eThis Wiseco standard piston kit, reference 457M04900, is a 49.00 mm forged piston assembly built to restore compression and performance on Yamaha YZ80 models from 1976 through 1980.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis Wiseco standard piston kit for Yamaha YZ80 delivers a 49.00 mm forged piston for top-end rebuilds on 1976-1980 machines. The kit, reference 457M04900, restores lost compression and keeps the 80cc two-stroke running the way it should. It suits riders and mechanics doing a routine top-end service or bringing an older YZ80 back into shape.\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\u003eStandard 49.00 mm bore size matching the original cylinder dimensions\u003c\/li\u003e\n\u003cli\u003eWiseco reference 457M04900 for straightforward cross-referencing\u003c\/li\u003e\n\u003cli\u003ePiston kit format includes the piston and matching components for assembly\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for Yamaha YZ80 applications from 1976 to 1980\u003c\/li\u003e\n\u003cli\u003ePrecision machined skirt and ring grooves for consistent sealing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Yamaha YZ80 1976\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ80 1977\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ80 1978\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ80 1979\u003c\/li\u003e\n\u003cli\u003efor Yamaha YZ80 1980\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTop-end rebuilds on 1976-1980 Yamaha YZ80 motocross bikes\u003c\/li\u003e\n\u003cli\u003eRestoring compression on high-hour two-stroke engines\u003c\/li\u003e\n\u003cli\u003eRoutine piston replacement during a cylinder refresh\u003c\/li\u003e\n\u003cli\u003eVintage YZ80 restoration projects\u003c\/li\u003e\n\u003cli\u003eRace prep for classic 80cc class machines\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\u003e457M04900\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e49.00 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePiston Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eStandard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWiseco\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 YZ80 1976-1980\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 Is this piston a direct replacement for my YZ80? \u003cstrong\u003eA:\u003c\/strong\u003e It is sized as a standard 49.00 mm piston for 1976-1980 Yamaha YZ80 models, so confirm your cylinder bore and serial number before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does a piston kit include rings and pin? \u003cstrong\u003eA:\u003c\/strong\u003e A Wiseco piston kit typically ships with the piston, rings, wrist pin, and clips, but verify the contents listed for reference 457M04900 before purchase.\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":51140021223510,"sku":"OO1C22444","price":268.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/s-l1600_1f0d751f-9777-41ba-bb6a-049b6e652e80.jpg?v=1794565850","url":"https:\/\/www.solidspare.com\/products\/457m04900-wiseco-std-piston-kit-49-00-mm-for-yamaha-yz80-1976-1980","provider":"Solid Spare","version":"1.0","type":"link"}