{"product_id":"namura-standard-bore-piston-rings-for-yamaha-pw50-fits-1981-2024-models-40mm","title":"Namura Standard Bore Piston Rings for Yamaha PW50 fits 1981-2024 Models 40mm","description":"\u003ch2\u003eStandard Bore Piston Rings for for Yamaha\u003c\/h2\u003e\u003cp\u003eThese standard bore piston rings for for Yamaha provide a precise seal within the cylinder to maintain compression and power for 40mm bore engines.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe standard bore piston rings for for Yamaha are high quality replacement rings designed to restore engine compression in worn cylinders. Installing these standard bore piston rings for for Yamaha allows for efficient combustion and improved overall engine power delivery. They are intended for engine rebuilders seeking reliable parts for small displacement applications.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecision manufactured for 40mm bores\u003c\/li\u003e\n\u003cli\u003eHeat resistant alloy composition\u003c\/li\u003e\n\u003cli\u003eUniform tension for consistent wall contact\u003c\/li\u003e\n\u003cli\u003eReduced blow-by for cleaner performance\u003c\/li\u003e\n\u003cli\u003eLong service life under load\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\u003eTop end engine rebuilds\u003c\/li\u003e\n\u003cli\u003eRestoring lost compression\u003c\/li\u003e\n\u003cli\u003eRegular engine maintenance cycles\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecs At A Glance\u003c\/h4\u003e\u003ctable\u003e\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBore Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40mm\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/table\u003e\u003ch4\u003eGood To Know\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Do I need to hone the cylinder before install? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, lightly deglazing the cylinder wall ensures the rings seat correctly.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Are these rings compatible with oversized pistons? \u003cstrong\u003eA:\u003c\/strong\u003e No, these are designed for standard 40mm bore size only.\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":44792218943574,"sku":"SZ1F01188","price":26.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_62bdb733-938a-484b-aea3-fb476435de8e.jpg?v=1780063859","url":"https:\/\/www.solidspare.com\/products\/namura-standard-bore-piston-rings-for-yamaha-pw50-fits-1981-2024-models-40mm","provider":"Solid Spare","version":"1.0","type":"link"}