{"product_id":"namura-040-over-bore-piston-kit-for-yamaha-pw50-fits-1981-2024-models-41mm","title":"Namura .040 Over Bore Piston Kit for Yamaha PW50 fits 1981-2024 Models 41mm","description":"\u003ch2\u003eNamura .040 Over Bore Piston Kit for Yamaha\u003c\/h2\u003e\u003cp\u003eThis .040 over bore piston kit for Yamaha PW50 models from 1981-2024 is a 41mm diameter piston designed to restore engine compression and performance after cylinder boring.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThis .040 over bore piston kit for Yamaha PW50 provides a reliable replacement for worn pistons, boosting power and compression in your 41mm bore. Ideal for Yamaha PW50 owners needing a direct-fit over bore piston kit to refresh their engine.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePrecision-machined 41mm piston diameter for .040 over bore applications\u003c\/li\u003e\n\u003cli\u003eHigh-strength aluminum alloy construction for durability and heat resistance\u003c\/li\u003e\n\u003cli\u003eIncludes piston rings, wrist pin, and circlips for complete installation\u003c\/li\u003e\n\u003cli\u003eDesigned to meet OEM specifications for smooth operation\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\u003eTrail riding and off-road adventures\u003c\/li\u003e\n\u003cli\u003eYouth motorcycle racing and training\u003c\/li\u003e\n\u003cli\u003eEngine rebuilds and restoration projects\u003c\/li\u003e\n\u003cli\u003eRecreational dirt biking for beginners\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\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e41mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOverbore\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e.040 in\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 piston kit require cylinder boring? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the cylinder must be bored to 41mm to accommodate this .040 over size piston kit.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Are the piston rings pre-gapped? \u003cstrong\u003eA:\u003c\/strong\u003e Rings are standard and may require end gap adjustment per engine specifications.\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":44888534777942,"sku":"SZ1F09846","price":92.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_b1ba9ecc-531d-4d6b-b441-55371156dcde.jpg?v=1781094779","url":"https:\/\/www.solidspare.com\/products\/namura-040-over-bore-piston-kit-for-yamaha-pw50-fits-1981-2024-models-41mm","provider":"Solid Spare","version":"1.0","type":"link"}