{"product_id":"namura-020-over-bore-piston-kit-for-yamaha-pw50-fits-1981-2024-models-40-5mm","title":"Namura .020 Over Bore Piston Kit for Yamaha PW50 fits 1981-2024 Models 40.5mm","description":"\u003ch2\u003eNamura .020 Over Bore Piston Kit for Yamaha PW50\u003c\/h2\u003e\u003cp\u003eThis Namura .020 over bore piston kit (40.5mm) fits Yamaha PW50 models from 1981 to 2024.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis Namura .020 over bore piston kit is designed for Yamaha PW50 minibikes from 1981 to 2024. With a 40.5mm bore (0.020 over), this piston kit is ideal for rebuilding worn PW50 cylinders. It provides a reliable replacement for the original piston and rings.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eOversize .020 (0.5mm) for worn cylinder restoration\u003c\/li\u003e\n\u003cli\u003eIncludes piston, rings, wrist pin, and circlips\u003c\/li\u003e\n\u003cli\u003ePrecision-cast aluminum alloy for light weight\u003c\/li\u003e\n\u003cli\u003eMatching ring set ensures proper compression\u003c\/li\u003e\n\u003cli\u003eEngineered for the Yamaha PW50 engine\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Yamaha PW50 1981-2024\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eEngine rebuilding for Yamaha PW50 minibikes\u003c\/li\u003e\n\u003cli\u003eTop-end overhaul for youth dirt bikes\u003c\/li\u003e\n\u003cli\u003ePerformance restoration of PW50 engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePiston Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40.5mm (.020 over)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYamaha PW50 1981-2024\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 What is the stock bore size for Yamaha PW50? \u003cstrong\u003eA:\u003c\/strong\u003e The standard bore is 40mm; this .020 over piston requires the cylinder to be bored to 40.5mm.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does the kit include a gasket set? \u003cstrong\u003eA:\u003c\/strong\u003e No, this is a piston kit only; a separate top-end gasket set is recommended for your 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":44888534351958,"sku":"SZ1F09834","price":92.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_2ceab33a-9c59-461f-bec7-60010150fadd.jpg?v=1781094761","url":"https:\/\/www.solidspare.com\/products\/namura-020-over-bore-piston-kit-for-yamaha-pw50-fits-1981-2024-models-40-5mm","provider":"Solid Spare","version":"1.0","type":"link"}