{"product_id":"sdh150-cylinder-kit","title":"SDH150 Cylinder Kit (SDH150-A \/ B \/ C) – 57.3mm Cylinder Sleeve, Piston, Piston Ring \u0026 Cylinder Gasket Set","description":"\u003ch2\u003eSDH150 Cylinder Kit for SDH150-A, SDH150-B and SDH150-C Engines\u003c\/h2\u003e\n\u003cp\u003eThis SDH150 cylinder kit is a top-end rebuild set for 150cc motorcycles that use the SDH150-A, SDH150-B or SDH150-C engine designation. It brings together the main parts you need when the cylinder wall is worn or scored: an air-cooled cylinder with its sleeve, a piston, piston rings, a piston pin and the cylinder gaskets. The listed bore is 57.3 mm. Easy Life Markets sells the kit as a single set, so you are not hunting for a piston in one place and gaskets in another.\u003c\/p\u003e\n\n\u003cp\u003eThe SDH prefix is the model code used on Sundiro Honda motorcycles, and you will usually find the full code stamped on the frame or printed on the vehicle's registration and spec plate. If your bike carries one of the three SDH150 codes above, this is the kit it was listed for.\u003c\/p\u003e\n\n\u003ch2\u003eWhy Riders Replace the Whole Cylinder Kit\u003c\/h2\u003e\n\u003cp\u003eOn a small air-cooled single, the \u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Cylinder_(engine)\" target=\"_blank\" rel=\"noopener\"\u003ecylinder\u003c\/a\u003e and piston do most of the hard work, and they wear together. Common signs that the top end needs attention include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBlue smoke from the exhaust, especially on start-up or when you roll off the throttle\u003c\/li\u003e\n\u003cli\u003eOil consumption between changes\u003c\/li\u003e\n\u003cli\u003eLow compression, hard starting or a loss of pulling power\u003c\/li\u003e\n\u003cli\u003eA piston slap or rattling noise from the top of the engine\u003c\/li\u003e\n\u003cli\u003eVisible scoring on the cylinder wall once the head is off\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhen the bore is worn, putting new rings into the old cylinder often does not seal properly. Fitting a new cylinder and matching piston at the same time gives you fresh, correctly sized surfaces that are meant to work together. Adding new gaskets while the engine is open is simply good practice, because reused gaskets are a common source of leaks.\u003c\/p\u003e\n\n\u003ch2\u003eWhat the SDH150 Cylinder Kit Includes\u003c\/h2\u003e\n\u003cp\u003eThe kit covers the parts named in the listing:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCylinder with sleeve (air-cooled, finned barrel)\u003c\/li\u003e\n\u003cli\u003ePiston\u003c\/li\u003e\n\u003cli\u003ePiston rings\u003c\/li\u003e\n\u003cli\u003ePiston pin (14 mm)\u003c\/li\u003e\n\u003cli\u003eCylinder gaskets\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe product photos show the set as it arrives. Use them to check each part against your engine before you start the job.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e Motorcycle cylinder kit \/ top-end kit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eListed engine models:\u003c\/strong\u003e SDH150-A, SDH150-B, SDH150-C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplacement class:\u003c\/strong\u003e 150cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore:\u003c\/strong\u003e 57.3 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd height:\u003c\/strong\u003e 62.3 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePiston pin diameter:\u003c\/strong\u003e 14 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooling:\u003c\/strong\u003e Air-cooled (finned cylinder)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Silver\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuantity:\u003c\/strong\u003e 1 set\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e CJQT121060601AZ\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow to Confirm This Is the Right Kit\u003c\/h2\u003e\n\u003cp\u003eA lot of 150cc engines look alike from the outside, so it pays to check a few measurements before you order an SDH150 cylinder kit. Here is what we suggest:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck your model code.\u003c\/strong\u003e Look for SDH150-A, SDH150-B or SDH150-C on the frame, spec plate or registration papers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasure the bore.\u003c\/strong\u003e Standard bore on this kit is 57.3 mm. If your engine has been bored oversize before, a standard-size piston will not be the right fit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck the piston pin.\u003c\/strong\u003e The pin in this kit is 14 mm. Measure the pin on your old piston, or the small end of the connecting rod.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompare the cylinder height.\u003c\/strong\u003e The end height of this cylinder is 62.3 mm. Measure your old barrel from the base gasket face to the head gasket face.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompare the bolt pattern and cam chain tunnel.\u003c\/strong\u003e Line up the photos with your old cylinder. Stud positions and the chain tunnel should match.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eIf all of that lines up, you can order with confidence. If one measurement is off, stop and ask us before buying.\u003c\/p\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cp\u003eReplacing a cylinder kit is a job a confident home mechanic can do with basic hand tools, a torque wrench and a service manual for the bike. A few points that make it go smoothly:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eClean every gasket surface completely before fitting the new gaskets.\u003c\/li\u003e\n\u003cli\u003eCheck the ring gaps and fit the \u003ca href=\"https:\/\/en.wikipedia.org\/wiki\/Piston_ring\" target=\"_blank\" rel=\"noopener\"\u003episton rings\u003c\/a\u003e in the correct grooves, with the markings facing up and the gaps staggered.\u003c\/li\u003e\n\u003cli\u003eMake sure the piston pin clips are fully seated. A loose clip can destroy a new cylinder.\u003c\/li\u003e\n\u003cli\u003eOil the piston and the cylinder wall lightly before sliding the barrel on.\u003c\/li\u003e\n\u003cli\u003eTighten the cylinder head to the torque values in your service manual, in the correct order.\u003c\/li\u003e\n\u003cli\u003eTake it easy for the first stretch of riding so the new rings can bed in, then change the oil.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you are not comfortable working inside an engine, a motorcycle workshop can fit the kit for you.\u003c\/p\u003e\n\n\u003ch2\u003eWhile the Top End Is Apart\u003c\/h2\u003e\n\u003cp\u003eSince the head and cylinder are already off, it is a good time to check the cam chain and tensioner, clean carbon off the valves and combustion chamber, and look at the valve seals if the bike was smoking. Fit a new spark plug, clean or replace the air filter, and refill with fresh oil after the break-in ride.\u003c\/p\u003e\n\n\u003ch2\u003eWho This Kit Is For\u003c\/h2\u003e\n\u003cp\u003eThis set suits riders and workshops rebuilding a tired SDH150 engine, bikes that have been sitting and seized, and anyone who wants to restore compression and cut oil burning without buying a whole engine. It is also handy to keep in stock if you run several of these bikes for delivery or daily commuting.\u003c\/p\u003e\n\n\u003ch2\u003eBuy the SDH150 Cylinder Kit at Easy Life Markets\u003c\/h2\u003e\n\u003cp\u003eYou can order this SDH150 cylinder kit right here. The current price and availability are shown on this page. Not sure about fitment? \u003ca href=\"\/pages\/contact\"\u003eContact our team\u003c\/a\u003e with your model code and measurements and we will help you check. You can also review our \u003ca href=\"\/pages\/return-refund-policy\"\u003ereturn and refund policy\u003c\/a\u003e before ordering.\u003c\/p\u003e\n\n\u003ch2\u003eRelated Engine Parts\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/57-4mm-scooter-piston-kit\"\u003e57.4mm scooter piston kit with rings and pin\u003c\/a\u003e if you only need to replace the piston\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/gy6-125cc-piston-kit\"\u003eGY6 125cc piston kit\u003c\/a\u003e for GY6-type scooter engines\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/64mm-motorcycle-piston-kit\"\u003e64mm motorcycle piston kit for Zongshen and Lifan horizontal engines\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/yamaha-pw50-60cc-big-bore-kit\"\u003e60cc big bore cylinder top end kit for the Yamaha PW50\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor more options, \u003ca href=\"\/collections\/pistons\"\u003ebrowse our pistons collection\u003c\/a\u003e, look through our \u003ca href=\"\/collections\/gaskets\"\u003eengine gaskets\u003c\/a\u003e, or shop the wider range of \u003ca href=\"\/collections\/engine-parts\"\u003eengine parts\u003c\/a\u003e and \u003ca href=\"\/collections\/auto-parts\"\u003eauto parts\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Photos\u003c\/h2\u003e\n\u003cp\u003e\n\u003cimg src=\"https:\/\/cf.cjdropshipping.com\/6bcc011d-6c4b-4136-bc37-83775815c147.jpg?x-oss-process=image\/quality,q_100\" alt=\"SDH150 cylinder kit with cylinder, piston, rings and gaskets\" style=\"max-width:100%;\"\u003e\n\u003cimg src=\"https:\/\/cf.cjdropshipping.com\/7d2bbf22-4a3e-4f63-8e6f-bb4713058618.jpg?x-oss-process=image\/quality,q_100\" alt=\"SDH150 cylinder kit parts laid out\" style=\"max-width:100%;\"\u003e\n\u003cimg src=\"https:\/\/cf.cjdropshipping.com\/1e73078b-753b-45e6-b2a7-00a046bfaf8d.jpg?x-oss-process=image\/quality,q_100\" alt=\"Air-cooled 57.3mm cylinder with piston and gasket set\" style=\"max-width:100%;\"\u003e\n\u003cimg src=\"https:\/\/cf.cjdropshipping.com\/b2660daa-38a6-4f0c-83c5-cd24971fd96c.jpg?x-oss-process=image\/quality,q_100\" alt=\"SDH150 cylinder, piston and piston rings\" style=\"max-width:100%;\"\u003e\n\u003cimg src=\"https:\/\/cf.cjdropshipping.com\/a43d1bf0-2302-4e93-b47a-92c08a02501e.jpg?x-oss-process=image\/quality,q_100\" alt=\"150cc motorcycle cylinder kit side view\" style=\"max-width:100%;\"\u003e\n\u003c\/p\u003e","brand":"easylife markets","offers":[{"title":"Silver","offer_id":46969650380961,"sku":"CJQT121060601AZ","price":267.01,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0751\/2086\/9537\/files\/6bcc011d-6c4b-4136-bc37-83775815c147.jpg?v=1788563463","url":"https:\/\/easylifemarketplace.com\/products\/sdh150-cylinder-kit","provider":"Easy Life Markets","version":"1.0","type":"link"}