{"product_id":"50cc-engine-piston-cylinder-head-top-end-kit-fit-for-1979-2017-yamaha-pw50-qt50","title":"50cc PW50 1981–2009 Cylinder, Piston Ring, Gasket, and Top End Assembly","description":"\u003ch2 data-path-to-node=\"1\"\u003e\u003cb data-path-to-node=\"1\" data-index-in-node=\"0\"\u003eKey Features\u003c\/b\u003e\u003c\/h2\u003e\n\u003cul data-path-to-node=\"2\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"2,0,0\"\u003e\u003cb data-path-to-node=\"2,0,0\" data-index-in-node=\"0\"\u003eComplete Top-End Restoration:\u003c\/b\u003e A 100% brand-new, comprehensive rebuild kit engineered to restore factory compression, reliable power delivery, and smooth operation to your youth dirt bike.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"2,1,0\"\u003e\u003cb data-path-to-node=\"2,1,0\" data-index-in-node=\"0\"\u003eDirect OEM Specification Match:\u003c\/b\u003e Precision-cast cylinder and finely machined piston components ensure an exact fit with original crankcase dimensions, eliminating the need for structural modifications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"2,2,0\"\u003e\u003cb data-path-to-node=\"2,2,0\" data-index-in-node=\"0\"\u003eHigh-Durability Metallurgy:\u003c\/b\u003e Cylinder barrel and piston rings are engineered from high-grade alloys to minimize heat deformation, resist wear under continuous high RPMs, and extend engine service life.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"4\"\u003e\u003cb data-path-to-node=\"4\" data-index-in-node=\"0\"\u003e\u003c\/b\u003e\u003c\/h3\u003e\n\u003ch2 data-path-to-node=\"4\"\u003e\u003cb data-path-to-node=\"4\" data-index-in-node=\"0\"\u003eFitment Guide\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp data-path-to-node=\"5\"\u003eSpecifically engineered as a direct replacement kit for the following 2-stroke mini dirt bike models:\u003c\/p\u003e\n\u003ctable data-path-to-node=\"6\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Years\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eEngine Displacement\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,1,0,0\"\u003e\u003cb data-path-to-node=\"6,1,0,0\" data-index-in-node=\"0\"\u003eYamaha\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,1,1,0\"\u003ePW50 (Y-Zinger)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,1,2,0\"\u003e1981–2002\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"6,1,3,0\"\u003e50cc 2-Stroke\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp data-path-to-node=\"7\"\u003e\u003ci data-path-to-node=\"7\" data-index-in-node=\"0\"\u003e⚠️ \u003cb data-path-to-node=\"7\" data-index-in-node=\"3\"\u003eFitment Note:\u003c\/b\u003e Please check your vehicle's exact production year before finalizing your purchase to ensure seamless alignment with your original intake and exhaust routing.\u003c\/i\u003e\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"9\"\u003e\u003cb data-path-to-node=\"9\" data-index-in-node=\"0\"\u003e\u003c\/b\u003e\u003c\/h3\u003e\n\u003ch2 data-path-to-node=\"9\"\u003e\u003cb data-path-to-node=\"9\" data-index-in-node=\"0\"\u003ePackage Includes (Comprehensive Component List)\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003eCylinder, Cylinder Head, Piston, Piston Rings, Wristpin, Needle Bearing, Circlips (2), Head Gasket, Base Gasket, Cylinder Studs (4), Cylinder Stud Nuts (4), Spark Plug\u003c\/p\u003e\n\u003cp data-path-to-node=\"10,6,0\"\u003e\u003ci data-path-to-node=\"10,6,0\" data-index-in-node=\"29\"\u003e(Everything is bundled exactly as pictured in the factory packaging).\u003c\/i\u003e\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"12\"\u003e\u003cb data-path-to-node=\"12\" data-index-in-node=\"0\"\u003e\u003c\/b\u003e\u003c\/h3\u003e\n\u003ch2 data-path-to-node=\"12\"\u003e\u003cb data-path-to-node=\"12\" data-index-in-node=\"0\"\u003eImportant Buyer Notes\u003c\/b\u003e\u003c\/h2\u003e\n\u003cul data-path-to-node=\"13\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"13,0,0\"\u003e\u003cb data-path-to-node=\"13,0,0\" data-index-in-node=\"0\"\u003ePre-Lubrication Required:\u003c\/b\u003e To prevent immediate piston scoring or seizure upon the initial startup, always apply a generous coat of clean 2-stroke engine oil to the cylinder wall and piston skirt during reassembly.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"13,1,0\"\u003e\u003cb data-path-to-node=\"13,1,0\" data-index-in-node=\"0\"\u003eGasket Preparation:\u003c\/b\u003e Ensure all mating surfaces on the crankcase are thoroughly cleaned of old gasket residue to guarantee a flawless, leak-free seal.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"13,2,0\"\u003e\u003cb data-path-to-node=\"13,2,0\" data-index-in-node=\"0\"\u003eProfessional Installation Recommended:\u003c\/b\u003e Top-end engine assembly requires precise torque specifications and careful alignment of piston ring gaps. Professional installation by a certified powersports mechanic is highly advised.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Labworkauto","offers":[{"title":"Default Title","offer_id":47253685928195,"sku":"F8-018623","price":49.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/2589\/4024\/files\/1_af99ded2-3b09-4fd0-a12f-99c328ea2ec8.jpg?v=1758869946","url":"https:\/\/labworkauto.com\/products\/50cc-engine-piston-cylinder-head-top-end-kit-fit-for-1979-2017-yamaha-pw50-qt50","provider":"Labworkauto","version":"1.0","type":"link"}