{"product_id":"piston-rings-020-over-bore-for-yamaha-1983-2006-pw80-1986-1990-bw80-47-5mm","title":"Piston Rings .020 Over Bore for Yamaha 1983-2006 PW80 \u0026 1986-1990 BW80 47.5mm","description":"\u003ch2\u003ePiston Rings for Yamaha\u003c\/h2\u003e\u003cp\u003eThese .020 over bore piston rings provide a reliable seal for the combustion chamber in 47.5mm cylinder bores for Yamaha PW80 and BW80 models.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThese piston rings for Yamaha engines restore compression and power to your 1983-2006 PW80 or 1986-1990 BW80. Designed as a high-quality replacement, these piston rings for Yamaha ensure your engine operates with optimal efficiency. This set is specifically sized for engines requiring a .020 over bore to compensate for slight cylinder wear.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eEngineered for precise oil control\u003c\/li\u003e\n\u003cli\u003eConstructed from high-tensile material\u003c\/li\u003e\n\u003cli\u003eDesigned for high-heat environments\u003c\/li\u003e\n\u003cli\u003eProvides consistent ring tension\u003c\/li\u003e\n\u003cli\u003eResistant to thermal fatigue\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003efor Yamaha 1983-2006 PW80\u003c\/li\u003e\n\u003cli\u003efor Yamaha 1986-1990 BW80\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eRestoring engine compression during top-end rebuilds\u003c\/li\u003e\n\u003cli\u003eImproving fuel efficiency in small displacement motors\u003c\/li\u003e\n\u003cli\u003eEliminating blow-by in slightly worn cylinder bores\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\u003e47.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOversize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.020\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 identify my bore size? \u003cstrong\u003eA:\u003c\/strong\u003e Measure the cylinder diameter with a micrometer or bore gauge to confirm the specific oversize needed.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can these be used on standard bores? \u003cstrong\u003eA:\u003c\/strong\u003e No, these are sized for a .020 over bore and will not seal correctly in a standard cylinder.\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":44792189124694,"sku":"SZ1F00789","price":23.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_5dfcd0f0-0142-42c8-9b30-5c9e7de73181.jpg?v=1780063299","url":"https:\/\/www.solidspare.com\/products\/piston-rings-020-over-bore-for-yamaha-1983-2006-pw80-1986-1990-bw80-47-5mm","provider":"Solid Spare","version":"1.0","type":"link"}