{"product_id":"namura-piston-rings-040-over-bore-for-yamaha-1983-2006-pw80-1986-1990-bw80-48mm","title":"Namura Piston Rings .040 Over Bore for Yamaha 1983-2006 PW80 1986-1990 BW80 48mm","description":"\u003ch2\u003ePiston Rings for Namura\u003c\/h2\u003e\u003cp\u003eThese piston rings for Namura are sized for a .040 over bore to seal the combustion chamber and manage oil consumption.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe piston rings for Namura are critical for restoring compression in worn cylinders that have been bored out. Each set of piston rings for Namura ensures proper heat transfer from the piston to the cylinder wall.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eHardened material for extended wear life\u003c\/li\u003e\n\u003cli\u003ePrecision-engineered for .040 over bore sizing\u003c\/li\u003e\n\u003cli\u003eMaintains consistent ring tension\u003c\/li\u003e\n\u003cli\u003eDesigned for 48mm piston diameter\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Yamaha PW80 1983-2006\u003c\/li\u003e\n\u003cli\u003efor Yamaha BW80 1986-1990\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\u003e.040 Over Bore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePiston Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e48mm\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 How do I measure for .040 over bore? \u003cstrong\u003eA:\u003c\/strong\u003e A machine shop must measure the cylinder to confirm the necessary over-bore diameter before installation.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is a break-in period required? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, a standard ring seating procedure should be followed after engine assembly.\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":44792191156310,"sku":"SZ1F00813","price":23.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_52cf5bc3-0ff2-4216-ab55-5f53330e5bf3.jpg?v=1780063330","url":"https:\/\/www.solidspare.com\/products\/namura-piston-rings-040-over-bore-for-yamaha-1983-2006-pw80-1986-1990-bw80-48mm","provider":"Solid Spare","version":"1.0","type":"link"}