{"product_id":"namura-standard-bore-top-end-repair-kit-for-yamaha-pw50-fits-1990-2024-40mm","title":"Namura Standard Bore Top End Repair Kit for Yamaha PW50 fits 1990-2024 40mm","description":"\u003ch2\u003eNamura Standard Bore Top End Repair Kit for Yamaha PW50\u003c\/h2\u003e\u003cp\u003eThis top end repair kit provides all necessary components to rebuild the cylinder and piston assembly on a Yamaha PW50, featuring a standard 40mm bore size.\u003c\/p\u003e\u003ch4\u003eOverview\u003c\/h4\u003e\u003cp\u003eThe Namura Standard Bore Top End Repair Kit is a complete overhaul solution for the Yamaha PW50's top end. This kit includes a piston, rings, wrist pin, and gaskets to restore engine compression and performance. Designed for the 40mm standard bore, this top end repair kit ensures a precise fit for 1990-2024 models.\u003c\/p\u003e\u003ch4\u003eBuilt For Performance\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eIncludes a cast aluminum piston with reinforced skirt for durability\u003c\/li\u003e\n\u003cli\u003eFeatures moly-coated rings to reduce friction and improve sealing\u003c\/li\u003e\n\u003cli\u003eSupplied with a high-strength wrist pin and circlips for secure assembly\u003c\/li\u003e\n\u003cli\u003eComplete gasket set includes head, base, and exhaust gaskets\u003c\/li\u003e\n\u003cli\u003ePrecision-machined to factory specifications for exact fitment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFits These Machines\u003c\/h4\u003e\u003cul\u003e\u003cli\u003efor Yamaha PW50 (1990-2024)\u003c\/li\u003e\u003c\/ul\u003e\u003ch4\u003eOn-The-Job Use\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eUsed for rebuilding the top end of a Yamaha PW50 youth dirt bike\u003c\/li\u003e\n\u003cli\u003eRestores lost compression and power after extended use\u003c\/li\u003e\n\u003cli\u003eIdeal for DIY mechanics and professional shop repairs\u003c\/li\u003e\n\u003cli\u003eEnsures smooth engine operation for trail riding and practice\u003c\/li\u003e\n\u003cli\u003eCommonly needed after piston and ring wear over time\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\u003e40mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eYamaha PW50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplicable Years\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1990-2024\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 cylinder? \u003cstrong\u003eA:\u003c\/strong\u003e No, this top end repair kit includes the piston, rings, wrist pin, and gaskets; the cylinder must be reused or replaced separately.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Is the piston standard size? \u003cstrong\u003eA:\u003c\/strong\u003e Yes, the piston is standard 40mm bore and not oversized, so it fits stock cylinders within factory 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":44890402586710,"sku":"SZ1F10806","price":109.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/8460\/0662\/files\/1_85cc1c67-7806-4cb1-83c9-ee5277a53ec6.jpg?v=1781138952","url":"https:\/\/www.solidspare.com\/products\/namura-standard-bore-top-end-repair-kit-for-yamaha-pw50-fits-1990-2024-40mm","provider":"Solid Spare","version":"1.0","type":"link"}