{"product_id":"namura-040-over-bore-piston-bearing-gasket-kit-for-yamaha-pw80-bw80-48mm","title":"Namura .040 Over Bore Piston Bearing \u0026 Gasket Kit for Yamaha PW80 \u0026 BW80 48mm","description":"\u003ch2\u003eNamura .040 Over Bore Piston Bearing \u0026amp; Gasket Kit for Yamaha\u003c\/h2\u003e\u003cp\u003eThis Namura .040 over bore piston bearing and gasket kit rebuilds the top end of Yamaha PW80 and BW80 engines with a 48mm bore size.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis Namura .040 over bore piston bearing and gasket kit is designed to restore compression and performance in Yamaha PW80 and BW80 two-stroke engines. It includes a piston, rings, bearing, and gaskets for a complete top end rebuild. The .040 over bore increases the cylinder displacement slightly for added power.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecision-machined piston from cast aluminum alloy for durability\u003c\/li\u003e\n\u003cli\u003eIncludes needle bearing and wrist pin for smooth operation\u003c\/li\u003e\n\u003cli\u003eComplete gasket set ensures leak-free sealing\u003c\/li\u003e\n\u003cli\u003e.040 over bore size compensates for cylinder wear\u003c\/li\u003e\n\u003cli\u003eDesigned for 48mm bore Yamaha engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Yamaha PW80\u003c\/li\u003e\n\u003cli\u003efor Yamaha BW80\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRebuilding top end of dirt bikes and dual-sport motorcycles\u003c\/li\u003e\n\u003cli\u003eRestoring lost compression in aged two-stroke engines\u003c\/li\u003e\n\u003cli\u003eOff-road trail riding and recreational use\u003c\/li\u003e\n\u003cli\u003eGeneral engine maintenance and performance refresh\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\u003e48mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOver Bore\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.040 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYamaha PW80 \u0026amp; BW80\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 include a wrist pin? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the kit includes a wrist pin and needle bearing for the connecting rod.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Will this fit a stock cylinder without boring? \u003cstrong\u003eA:\u003c\/strong\u003e No, the .040 over bore piston requires the cylinder to be bored to match the oversize.\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":44890411368534,"sku":"SZ1F10944","price":116.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_db99b5ae-432c-4d71-b501-15b85c2f1fb4.jpg?v=1781139143","url":"https:\/\/www.solidspare.com\/products\/namura-040-over-bore-piston-bearing-gasket-kit-for-yamaha-pw80-bw80-48mm","provider":"Solid Spare","version":"1.0","type":"link"}