{"product_id":"64mm-motorcycle-piston-kit","title":"64mm Motorcycle Piston Kit – Zongshen 125CC \/ Lifan 138CC Horizontal Air-Cooled Piston, Rings \u0026 Pin","description":"\u003ch2\u003e64mm Motorcycle Piston Kit for Zongshen 125cc and Lifan 138cc Horizontal Engines\u003c\/h2\u003e\n\u003cp\u003eThis 64mm motorcycle piston kit is a replacement piston and ring set listed for Zongshen 125cc and Lifan 138cc horizontal, air-cooled engines. The piston measures 64 mm across and 49 mm tall, runs a 15 mm piston pin, and is made from high-purity aluminum. At Easy Life Markets we sell it as a complete piston kit with rings and pin, ready for a top-end rebuild.\u003c\/p\u003e\n\n\u003cp\u003eHorizontal engines, with the cylinder lying almost flat and pointing forward, are the layout used on a huge number of small motorcycles, pit bikes, ATVs and utility bikes. \u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Zongshen\" target=\"_blank\" rel=\"noopener\"\u003eZongshen\u003c\/a\u003e and \u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Lifan_Group\" target=\"_blank\" rel=\"noopener\"\u003eLifan\u003c\/a\u003e are two of the best-known makers of these engines, and their designs are used across many brands, so the same piston can turn up in bikes with very different badges on the tank.\u003c\/p\u003e\n\n\u003ch2\u003eWhy You Would Replace the Piston\u003c\/h2\u003e\n\u003cp\u003eThese engines are simple and tough, but they do wear, especially if they have been ridden hard, run low on oil or fed dusty air through a tired filter. A new piston and rings are usually needed when you notice:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSmoke from the exhaust and oil disappearing from the sump\u003c\/li\u003e\n\u003cli\u003eHard starting and poor idle\u003c\/li\u003e\n\u003cli\u003eLess power on hills or with a passenger\u003c\/li\u003e\n\u003cli\u003eA knocking or slapping noise from the cylinder\u003c\/li\u003e\n\u003cli\u003eA piston that has seized or scuffed after overheating\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBefore you order, pull the cylinder and check the bore. If the cylinder wall is smooth and within size, a piston kit on its own is often enough. If it is scored, the cylinder needs to be replaced or rebored.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-purity aluminum piston\u003c\/li\u003e\n\u003cli\u003e64 mm piston diameter and 49 mm height, shown on the dimension photo\u003c\/li\u003e\n\u003cli\u003e15 mm piston pin\u003c\/li\u003e\n\u003cli\u003eComplete ring set for sealing and oil control\u003c\/li\u003e\n\u003cli\u003eDesigned for horizontal air-cooled engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhat Is Included\u003c\/h2\u003e\n\u003cp\u003eAs shown in the product photos, the kit includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 x piston\u003c\/li\u003e\n\u003cli\u003e1 x set of piston rings\u003c\/li\u003e\n\u003cli\u003e1 x piston pin\u003c\/li\u003e\n\u003cli\u003e2 x piston pin circlips\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e Motorcycle piston and rings kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eListed engines:\u003c\/strong\u003e Zongshen 125cc and Lifan 138cc horizontal, air-cooled\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston diameter:\u003c\/strong\u003e 64 mm (6.4 cm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston height:\u003c\/strong\u003e 49 mm (4.9 cm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston pin size:\u003c\/strong\u003e 15 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e High-purity aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1 kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e CJJT142889401AZ\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCheck the Size Before You Buy\u003c\/h2\u003e\n\u003cp\u003eThis is the most important part of buying any piston for a horizontal engine. Engines in this family were built in many sizes and by many factories, and the displacement badge on the bike is not always a reliable guide to the bore inside. Some engines have also been bored out or fitted with big bore kits over the years. So please check these three numbers against your engine rather than going by the model name alone:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore:\u003c\/strong\u003e measure the inside of your cylinder. This piston is 64 mm in diameter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston height:\u003c\/strong\u003e measure your old piston from the crown to the bottom of the skirt. This one is 49 mm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePin diameter:\u003c\/strong\u003e measure your old pin. This kit uses a 15 mm pin.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eIt also helps to compare the crown shape and valve reliefs with the photos. If all three numbers match, the 64mm motorcycle piston kit is the one you want. If one of them does not, send us your measurements and we will tell you honestly whether this part suits your engine.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Advice\u003c\/h2\u003e\n\u003cp\u003eFitting a piston kit is a straightforward job for most home mechanics with a set of metric sockets, a torque wrench and a service manual. A few tips:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCover the crankcase opening with a clean rag before you remove the old circlips.\u003c\/li\u003e\n\u003cli\u003eCheck the ring end gaps inside the cylinder before fitting them to the piston.\u003c\/li\u003e\n\u003cli\u003eInstall the \u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Piston_ring\" target=\"_blank\" rel=\"noopener\"\u003episton rings\u003c\/a\u003e with markings facing up and space the gaps evenly around the piston.\u003c\/li\u003e\n\u003cli\u003eFollow the direction mark on the piston crown when you fit it to the connecting rod.\u003c\/li\u003e\n\u003cli\u003eCoat the piston, rings and cylinder with fresh engine oil before assembly.\u003c\/li\u003e\n\u003cli\u003eReplace the base and head gaskets rather than reusing the old ones.\u003c\/li\u003e\n\u003cli\u003eBreak the engine in gently and change the oil after the first short run.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHelping Your New Piston Last\u003c\/h2\u003e\n\u003cp\u003eA new piston will only last as long as the conditions inside the engine allow. Most piston failures on horizontal engines come down to a handful of causes, and all of them are easy to avoid. Keep the air filter clean and properly sealed, because dust drawn past a loose filter wears rings and cylinder walls quickly. Change the oil on schedule, and check the level often, since these small engines hold very little oil. Make sure the carburetor jetting is not too lean, especially after fitting an aftermarket exhaust or intake, as a lean mixture runs hot and can scuff a piston. Finally, let the engine warm up for a minute before riding hard. Looking after these basics will get far more life from your rebuild.\u003c\/p\u003e\n\n\u003ch2\u003eWho This Kit Suits\u003c\/h2\u003e\n\u003cp\u003eThis kit is aimed at owners of small motorcycles, pit bikes and utility bikes with Zongshen or Lifan horizontal engines, and at repair shops that keep common pistons on hand. It is a cost-effective way to bring back compression and stop oil burning on an engine that is otherwise healthy.\u003c\/p\u003e\n\n\u003ch2\u003eOrder the 64mm Motorcycle Piston Kit at Easy Life Markets\u003c\/h2\u003e\n\u003cp\u003eYou can buy this piston kit right here. The current price and availability are shown on this page. If you would like us to check your measurements first, \u003ca href=\"\/pages\/contact\"\u003eget in touch with our customer service team\u003c\/a\u003e. Please also take a look at our \u003ca href=\"\/pages\/return-refund-policy\"\u003ereturn and refund policy\u003c\/a\u003e before ordering.\u003c\/p\u003e\n\n\u003ch2\u003eRelated Products\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/57-4mm-scooter-piston-kit\"\u003e57.4mm scooter piston kit\u003c\/a\u003e for smaller scooter engines\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/gy6-125cc-piston-kit\"\u003eGY6 125cc piston kit\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/sdh150-cylinder-kit\"\u003eSDH150 cylinder kit with cylinder, piston and gaskets\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/yamaha-yz125-full-gasket-kit\"\u003efull engine gasket kit set for the YZ125\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eYou can find more options in our \u003ca href=\"\/collections\/pistons\"\u003epistons collection\u003c\/a\u003e, our \u003ca href=\"\/collections\/gaskets\"\u003egaskets collection\u003c\/a\u003e and the wider \u003ca href=\"\/collections\/engine-parts\"\u003eengine parts\u003c\/a\u003e section.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Photos\u003c\/h2\u003e\n\u003cp\u003e\n\u003cimg src=\"https:\/\/cf.cjdropshipping.com\/f2c0d44b-7828-4529-a034-1138ff05c3a0.jpg\" alt=\"64mm motorcycle piston kit\" style=\"max-width:100%;\"\u003e\n\u003cimg src=\"https:\/\/cf.cjdropshipping.com\/209a49eb-a78d-4cec-9f61-70e67c3bc5e4.jpg\" alt=\"64mm motorcycle piston kit detail\" style=\"max-width: 100%;\"\u003e\n\u003cimg src=\"https:\/\/cf.cjdropshipping.com\/0851adbf-1b7d-4d33-8466-1b1db64cfbf4.jpg\" alt=\"64mm motorcycle piston kit detail\" style=\"max-width: 100%;\"\u003e\n\u003cimg src=\"https:\/\/cf.cjdropshipping.com\/a79eecc2-20b1-4c59-9a71-5c19e3cbbe55.jpg\" alt=\"64mm motorcycle piston kit detail\" style=\"max-width: 100%;\"\u003e\n\u003cimg src=\"https:\/\/cf.cjdropshipping.com\/62269dd0-e0fd-4466-98be-362bf6ea1a39.jpg\" alt=\"64mm motorcycle piston kit detail\" style=\"max-width: 100%;\"\u003e\n\u003c\/p\u003e","brand":"easylife markets","offers":[{"title":"Photo Color","offer_id":46969652019361,"sku":"CJJT142889401AZ","price":113.77,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0751\/2086\/9537\/files\/e4d2c9e8-0aaf-424c-a672-818555c9eea6.jpg?v=1788563619","url":"https:\/\/easylifemarketplace.com\/products\/64mm-motorcycle-piston-kit","provider":"Easy Life Markets","version":"1.0","type":"link"}