{"title":"Engine Parts","description":"Monster Scooter Parts carries a good supply of gas scooter, ATV, and buggy engine parts. If you need internal or external engine parts for your 50cc, 110cc, 125cc, 150cc, and 250cc scooter engine, we most likely have it. We stock a wide range of engine parts for Chinese-built 50cc GY6 QMB139, 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 engines, as well as Honda and Vespa engine parts.\u003cbr\u003e\u003cbr\u003eEverything you need to rebuild a tired scooter engine can be found here. From intake valves and exhaust valves to complete cylinder heads. We also stock gas scooter transmission parts, all types of scooter gaskets and seals, starters, fuel system parts, oil pumps, and oil coolers.\n\n\u003cbr\u003e\n\n\u003cbr\u003e\n\n\u003cbr\u003e\n\nWe are constantly expanding our inventory of engine parts for all makes and models of gas scooters, so check this page often. Don't see what you need? Call Monster Scooter Parts!\u003cbr\u003e\u003cbr\u003e","products":[{"product_id":"kick-start-arm-assembly","title":"Kick Start Arm Assembly for 50cc 139QMB Scooters","description":"Universal replacement kick start arm assembly for 50cc 139QMB scooters, including models from Baja Motorsports (the SC50 50cc) and countless other models of GY6 style gas scooters. This kick start arm is designed to be mounted on the right side of the engine.\u003cbr\u003e\n\u003cbr\u003e\nThis kick start lever is commonly used on many different brands of 50cc gas street scooters.","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44336910303394,"sku":"E41-4892","price":6.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/e41-4892_7.jpg?v=1774777098"},{"product_id":"kick-start-idler-gear-50cc-gy6-scooter-engines","title":"Kick Start Idler Gear for 150cc GY6 Scooter Engines","description":"\u003cp\u003eKick start idler gear for 150cc GY6 scooter engines.\u003c\/p\u003e","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44336912793762,"sku":"E41-4926","price":8.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/e41-4926_1.jpg?v=1774776418"},{"product_id":"right-crankcase-cover-gasket-honda-cn250-all","title":"Right Crankcase Cover Gasket for Honda Elite 250 (1985-1988 Models) and Helix CN250 (All Models) (OEM)","description":"\u003cp\u003eRight crankcase cover gasket for 1985-1988 models of the Honda Elite 250 (CH250) and all models of the Honda Helix (CN250). This is the stock, OEM part for the Honda Elite 250 and Helix, and will match the specifications of your original part.\u003c\/p\u003e\u003cbr\u003e\n\u003cbr\u003e\n\u003cb\u003eHonda\u003c\/b\u003e: 11394-KS4-690","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44336918790306,"sku":"E41-5213","price":33.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/right-crankcase-cover-gasket-honda-cn250-all_1.jpg?v=1774777714"},{"product_id":"flywheel-cover-vintage-vespa","title":"Flywheel Cover for Large Frame Vintage Vespa Scooters","description":"This replacement flywheel cover for large frame vintage Vespa scooters will mount on most of those beautiful old manual transmission 2-stokers from the Golden Age of Scooterdom.\u003cbr\u003e\n\u003cbr\u003e\nJust a few of the models that used this cover:\u003cbr\u003e\n\u003cbr\u003e\n\u003cli\u003eVBA 150\u003c\/li\u003e\n\u003cli\u003eVBB 150\u003c\/li\u003e\n\u003cli\u003eVBC 150 Super\u003c\/li\u003e\n\u003cli\u003eVLA GL 150\u003c\/li\u003e\n\u003cli\u003eVLB 150 Sprint\u003c\/li\u003e\n\u003cli\u003eVNA 125\u003c\/li\u003e\n\u003cli\u003eVNB 125\u003c\/li\u003e\n\u003cli\u003eVNC 125 Super\u003c\/li\u003e\n\u003cli\u003eVNL 125 GT\/GTR\/TS\u003c\/li\u003e","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44336956997794,"sku":"E41-9603","price":31.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/flywheel-cover-vintage-vespa.jpg?v=1774782800"},{"product_id":"kick-starter-shaft-for-50cc-gy6-139qmb-engines","title":"Kick Start Shaft \u0026 Gear Assembly for 50cc GY6 139QMB Scooter Engines","description":"Kick start shaft \u0026amp; gear for 50cc GY6 139QMB engines. This kick start shaft is used on a wide variety of scooters and ATV brands and models that have a Chinese built 50cc GY6 139QMB engine.\u003cbr\u003e\n\u003cbr\u003e\nPlease check the Specifications below to see if this is the correct kick starter shaft for your 50cc GY6 139QMB engine.","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337002447010,"sku":"E88-9533","price":6.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/e88-9533_3.jpg?v=1774790538"},{"product_id":"valve-washer-16-mm-x-23-mm-50cc-gy6-139qmb-engine","title":"Valve Washer 16 mm x 23 mm for 50cc GY6 139QMB Engines","description":"16 mm x 23 mm valve washer for 50cc GY6 139QMB engines.\u003cbr\u003e\n\u003cbr\u003e\nPlease check the dimensions on the Specs tab to see if this is the correct valve washer for your Chinese built 50cc GY6 139QMB engine","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337002545314,"sku":"E88-9534","price":0.19,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/valve-washer-16-mm-x-23-mm-50cc-gy6-139qmb-engine.jpg?v=1774790442"},{"product_id":"valve-spring-seat-50cc-gy6-139qmb-engine","title":"Valve Spring Seat for 50cc GY6 139QMB Engines","description":"Valve spring seat for 50cc GY6 139QMB engines.\u003cbr\u003e\n\u003cbr\u003e\nThis valve spring seat is used on a wide variety of scooters and ATV brands and models that have a Chinese built 50cc GY6 139QMB engine.","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337002676386,"sku":"E88-9538","price":0.21,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/e88-9538_1.jpg?v=1774790445"},{"product_id":"valve-clips-50cc-gy6-139qmb-engine","title":"Valve Keepers for 50cc GY6 139QMB Engines","description":"Valve clips for 50cc GY6 139QMB engines.\u003cbr\u003e\n\u003cbr\u003e\nThese valve clips are used on a wide variety of scooters and ATV brands and models that have a Chinese built 50cc GY6 139QMB engine.","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337002709154,"sku":"E88-9539","price":0.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/valve-clips-50cc-gy6-139qmb-engine.jpg?v=1774790457"},{"product_id":"cylinder-dowel-pin-50cc-gy6-139qmb-engine","title":"Cylinder Dowel Pin for 50cc GY6 139QMB Engines","description":"13.5 mm long cylinder dowel pin for 50cc GY6 139QMB engines. Cylinder dowel pin, also known as a locating pin, are used to align the cylinder head when installing it on the crankcase.\u003cbr\u003e\n\u003cbr\u003e\nPlease check the dimensions on the Specs tab to see if this is the correct cylinder dowel pin for your Chinese built 50cc GY6 139QMB engine.","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337002741922,"sku":"E88-9541","price":0.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/e88-9541_1.jpg?v=1774790460"},{"product_id":"piston-for-50cc-gy6-139qmb-scooter-engines","title":"Piston for 50cc GY6 139QMB Scooter Engines","description":"This is a 39 mm outer diameter piston for 50cc GY6 139QMB scooter engines. The 39 mm piston is a stock size for many Chinese built 50cc GY6 139QMB gas scooter engines, however you should carefully check the dimensions on the Specs tab to see if this is the correct 39 mm outer diameter piston for your scooter.\u003cbr\u003e\n\u003cbr\u003e\nThe Chinese built 50cc GY6 139QMB engine has been in production by many brands and manufacturers over the years, and it is safe to say that these little pistons are powering millions of scooters around the world.","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337002774690,"sku":"E88-9540","price":3.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/e88-9540_1.jpg?v=1774790461"},{"product_id":"camshaft-tensioner-lever-bolt-for-50cc-gy6-139qmb-engines","title":"Camshaft Tensioner Lever Bolt for 50cc GY6 139QMB Engines","description":"M6x1.00 camshaft tensioner lever bolt for 50cc GY6 139QMB engines.\u003cbr\u003e\n\u003cbr\u003e\nPlease check the dimensions on the Specs tab to see if this is the correct camshaft tensioner lever bolt for your Chinese built 50cc GY6 139QMB engine.","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337002807458,"sku":"E88-9544","price":0.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/e88-9544_1.jpg?v=1774790465"},{"product_id":"camshaft-chain-guide-50cc-gy6-139qmb-engine","title":"Camshaft Chain Guide for 50cc GY6 139QMB Engines","description":"Camshaft chain guide for 50cc GY6 139QMB engines. The camshaft chain guide is an internal engine part visible only when you remove the 50cc GY6 139QMB cylinder head.\u003cbr\u003e\n\u003cbr\u003e\nPlease check the dimensions on the Specs tab to see if this is the correct camshaft chain guide for your Chinese built 50cc GY6 139QMB engine.","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337002840226,"sku":"E88-9542","price":0.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/e88-9542_1.jpg?v=1774790470"},{"product_id":"gearbox-brake-pin-50cc-gy6-139qmb-engine","title":"Gearbox Brake Pin for 50cc GY6 139QMB Engines","description":"56 mm long gearbox brake pin for 50cc GY6 139QMB engines.\u003cbr\u003e\n\u003cbr\u003e\nPlease check the dimensions on the Specs tab to see if this is the correct gearbox brake pin for your Chinese built 50cc GY6 139QMB engine.","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337002872994,"sku":"E88-9545","price":0.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/e88-9545_1.jpg?v=1774790475"},{"product_id":"camshaft-chain-tensioner-for-50cc-gy6-139qmb-engines","title":"Camshaft Chain Tensioner for 50cc GY6 139QMB Engines","description":"Camshaft chain tensioner for 50cc GY6 139QMB engines. A camshaft chain tensioner, also known as a camshaft chain regulator, is used to adjust the timing chain tension on the 50cc GY6 139QMB engine.\u003cbr\u003e\n\u003cbr\u003e\nPlease check the dimensions on the Specs tab to see if this is the correct camshaft chain tensioner for your Chinese built 50cc GY6 139QMB engine.","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337002938530,"sku":"E88-9543","price":0.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/e88-9543_1.jpg?v=1774790662"},{"product_id":"kick-starter-gear-clip-50cc-gy6-139qmb-engine","title":"Kick Starter Gear Clip for 50cc GY6 139QMB Engines","description":"\u003cp\u003e15.7 mm outer diameter kick starter gear clip for Chinese built 50cc GY6 139QMB engines.\u003c\/p\u003e","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337003004066,"sku":"E88-9546","price":0.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/e88-9546_1.jpg?v=1774790667"},{"product_id":"cylinder-head-dowel-pin-for-125cc-gy6-qmi152-157-and-150cc-gy6-qmj152-157-engines","title":"Cylinder Head Dowel Pin for 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 Engines","description":"16 mm long cylinder head dowel pin for 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 engines. A cylinder dowel pin, also known as a locating pin, is used to align the cylinder head when installing it on the crankcase.\u003cbr\u003e\n\u003cbr\u003e\nPlease check the dimensions on the Specs tab to see if this is the correct cylinder dowel pin for your Chinese built 125cc and 150cc GY6 QMJ152\/157 and QMI152\/157 engine.","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337003069602,"sku":"E88-9549","price":0.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/cylinder-head-dowel-pin-150cc-and-125cc-gy6-qmj152-157-and-qmi152-157-engine_1.jpg?v=1774790675"},{"product_id":"cylinder-dowel-pin-150cc-gy6-qmi152-157-and-qmj152-157-engine","title":"Cylinder Dowel Pin for 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 Engines","description":"16 mm long cylinder dowel pin for 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 engines. A cylinder dowel pin, also known as a locating pin, is used to align the cylinder head when installing it on the crankcase.\u003cbr\u003e\n\u003cbr\u003e\nPlease check the dimensions on the Specs tab to see if this is the correct cylinder dowel pin for your Chinese built 150cc GY6 QMI152\/157 and QMJ152\/157 engines.","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337003167906,"sku":"E88-9550","price":0.47,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/cylinder-dowel-pin-150cc-gy6-qmi152-157-and-qmj152-157-engine.jpg?v=1774790687"},{"product_id":"rear-idler-cog-sprocket-complete-for-125cc-gy6-qmi152-157-and-150cc-gy6-qmj152-157-engines","title":"Rear Idler Cog Sprocket Complete for 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 Engines","description":"Complete rear idler cog sprocket assembly for 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 engines. Includes friction gear, cog sprocket, shaft, washer, pin, and spring.\u003cbr\u003e\n\u003cbr\u003e\nThis rear idler cog sprocket assembly is used on a wide variety of scooters and ATV brands and models that have Chinese built 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 engines.","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337003430050,"sku":"E88-9554","price":6.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/e88-9554_1.jpg?v=1774790725"},{"product_id":"rocker-arm-assembly-150cc-and-125cc-gy6-qmi152-157-and-qmj152-157-engine","title":"Rocker Arm Assembly for 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 Engines","description":"Rocker arm assembly for 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 engines.\u003cbr\u003e\n\u003cbr\u003e\nA rocker arm is a lever that sits on top of the valve stem and opens and closes the inlet and exhaust valves as the camshaft rotates. The rocker arm assembly for 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 engines is located inside the cylinder head cover.\u003cbr\u003e\n\u003cbr\u003e\nThis rocker arm assembly is used on a wide variety of scooters and ATV brands and models that have Chinese built 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 engines.","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337003462818,"sku":"E88-9557","price":1.48,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/e88-9557_1.jpg?v=1774790734"},{"product_id":"kick-starter-spindle-125cc-gy6-qmi152-qmj152-engine","title":"Kick Starter Spindle for 125cc GY6 QMI152 and 150cc GY6 QMJ152 Engines","description":"Here is our 5-1\/8\" (129.3 mm) long kick starter spindle for 125cc GY6 QMI152 and 150cc GY6 QMJ152 engines. This kick starter spindle is used on a wide variety of scooters and ATV brands and models that have Chinese built 125cc GY6 QMI152 and 150cc GY6 QMJ152 engines.\u003cbr\u003e\u003cbr\u003e\n\u003cb\u003eNote:\u003c\/b\u003e Please measure your old starter spindle's length before ordering. GY6 engines have been made for many years by numerous manufacturers and replacement components may not always be totally interchangeable.","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337003528354,"sku":"E88-9555","price":4.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/e88-9555_1.jpg?v=1774790747"},{"product_id":"starter-gear-for-125cc-gy6-qmi152-157-and-150cc-gy6-qmj152-157-engines","title":"Starter Gear for 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 Engines","description":"20 tooth, 45 mm outer diameter starter gear for 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 engines. This starter gear is used on a wide variety of scooters and ATV brands and models that have Chinese built 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 engines.\u003cbr\u003e\n\u003cbr\u003e\nPlease check the dimensions on the Specs tab to see if this is the correct starter gear for your Chinese built 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 engine.","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337003495586,"sku":"E88-9556","price":3.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/e88-9556_1.jpg?v=1774790751"},{"product_id":"camshaft-stopper-plate-for-125cc-gy6-qmi152-157-and-150cc-gy6-qmj152-157-engines","title":"Camshaft Stopper Plate for 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 Engines","description":"\u003cp\u003eCamshaft stopper plate for 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 engines. This camshaft stopper plate is used on a wide variety of scooters and ATV brands and models that have Chinese built 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 engines.\u003c\/p\u003e","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337003823266,"sku":"E88-9558","price":0.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/camshaft-stopper-plate-150cc-and-125cc-gy6-qmi152-157-and-qmj152-157-engine_3.jpg?v=1774790753"},{"product_id":"valve-keepers-150cc-and-125cc-gy6-qmi152-157-and-qmj152-157-engine","title":"Valve Keepers for 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 Engines","description":"Valve keepers for 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 engines. These valve keepers are used on a wide variety of scooters and ATV brands and models that have Chinese built 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 engines.\u003cbr\u003e\n\u003cbr\u003e\nThese valve keepers are sold in pairs.","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337003856034,"sku":"E88-9559","price":0.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/e88-9559_1.jpg?v=1774790759"},{"product_id":"inner-valve-spring-150cc-and-125cc-gy6-qmi152-157-and-qmj152-157-engine","title":"Inner Valve Spring for 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 Engines","description":"Inner valve spring for 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 engines. This inner valve spring is used on a wide variety of scooters and ATV brands and models that have Chinese built 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 engines.\u003cbr\u003e\n\u003cbr\u003e\nPlease check the dimensions on the Specs tab to see if this is the correct inner valve spring for your Chinese built 150cc and 125cc GY6 QMI152\/157 and QMJ152\/157 engines.","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337003888802,"sku":"E88-9561","price":0.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/e88-9561_1.jpg?v=1774790765"},{"product_id":"outer-valve-spring-150cc-and-125cc-gy6-qmi152-157-and-qmj152-157-engine","title":"Outer Valve Spring for 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 Engines","description":"Outer valve spring for 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 engines. This outer valve spring is used on a wide variety of scooters and ATV brands and models that have Chinese built 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 engines.\u003cbr\u003e\n\u003cbr\u003e\nPlease check the dimensions on the Specs tab to see if this is the correct outer valve spring for your Chinese built 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 engine.","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337003921570,"sku":"E88-9560","price":0.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/e88-9560_1.jpg?v=1774790776"},{"product_id":"valve-seal-150cc-and-125cc-gy6-qmi152-157-and-qmj152-157-engine","title":"Valve Seal for 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 Engines","description":"Valve seal for 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 engines. This valve seal is used on a wide variety of scooters and ATV brands and models that have Chinese built 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 engines.\u003cbr\u003e\n\u003cbr\u003e\nPlease check the dimensions on the Specs tab to see if this is the correct valve seal for your Chinese built 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 engine.","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337003987106,"sku":"E88-9562","price":0.52,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/valve-seal-150cc-and-125cc-gy6-qmi152-157-and-qmj152-157-engine.jpg?v=1774790777"},{"product_id":"27-8-mm-intake-valve-for-125cc-gy6-qmi152-157-150cc-gy6-qmj152-157-go-kart-scooter-engines","title":"27.8 mm Intake Valve for 125cc GY6 QMI152\/157 \u0026 150cc GY6 QMJ152\/157 Go-Kart \u0026 Scooter Engines","description":"\u003cp\u003e27.8 mm diameter intake valve for 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 go-kart \u0026amp; scooter engines. This intake valve is used on a wide variety of go-kart \u0026amp; scooter models that have Chinese built 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 engines.\u003cbr\u003e\u003cbr\u003ePlease check the dimensions on the Specs tab to see if this is the correct intake valve for your Chinese built 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 engine.\u003c\/p\u003e","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337004019874,"sku":"E88-9563","price":3.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/intake-valve-125cc-gy6-qmi152-157-and-qmj152-157-engine_2.jpg?v=1774790779"},{"product_id":"exhaust-valve-125cc-gy6-qmi152-157-and-qmj152-157-engine","title":"23 mm Exhaust Valve for 125cc GY6 QMI152\/157 \u0026 150cc GY6 QMJ152\/157 Go-Kart \u0026 Scooter Engines","description":"23 mm exhaust valve for 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 go-kart \u0026amp; scooter engines. This exhaust valve is used on a wide variety of scooters and ATV brands and models that have Chinese built 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 engines.\u003cbr\u003e\n\u003cbr\u003e\nPlease check the dimensions on the Specs tab to see if this is the correct exhaust valve for your Chinese built 125cc GY6 QMI152\/157 and 150cc GY6 QMJ152\/157 scooter engine.","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337004085410,"sku":"E88-9564","price":3.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/exhaust-valve-125cc-gy6-qmi152-157-and-qmj152-157-engine_2.jpg?v=1774790555"},{"product_id":"150cc-gy6-scooter-go-kart-engine-crankcase-cover","title":"150cc GY6 Scooter \u0026 Go-Kart Engine Crankcase Cover","description":"Do you need a replacement a 150cc GY6 scooter \u0026amp; go-kart engine crankcase cover? The 150cc GY6 engine is a very common scooter and go-kart engine, and sports a nice black finish.\u003cbr\u003e\u003cbr\u003e\nThis case is designed for use with 10\" or 11\" diameter rear rims. \u003cbr\u003e\u003cbr\u003e Please use your rear rims to determine correct fitment.","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337004445858,"sku":"E88-9574","price":34.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/e88-9574_1.jpg?v=1774790566"},{"product_id":"50cc-72cc-high-performance-scooter-engine-kit","title":"72cc 47 mm High Performance Big Bore Cylinder Kit for 50cc QMB139 Scooter Engines","description":"Our 72cc scooter big bore cylinder kit is great for increasing overall performance on small under-powered 50cc QMB139 scooter engines.\u003cbr\u003e\n\u003cbr\u003e\nEngine kit increases engine bore size from 50cc to 72cc and includes everything shown in the image; cylinder, rings, and gaskets.\u003cbr\u003e\u003cbr\u003e\nThis 72cc scooter engine kit increases low end acceleration as well as top speed.\u003cbr\u003e\n\u003cbr\u003e\nThis high performance scooter big bore engine kit is easy to install. Combine with a high performance carburetor and high performance exhaust and get peak performance from your 50cc gas scooter.\u003cbr\u003e\n\u003cbr\u003e\n\u003cb\u003eNote:\u003c\/b\u003e This high performance cylinder kit is only compatible with 4-stroke 50cc QMB139 engines.","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337105830050,"sku":"K72-7916","price":38.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/k72-7916.jpg?v=1774816261"},{"product_id":"70cc-high-performance-scooter-engine-kit","title":"81cc High Performance Cylinder Kit for 50cc GY6 139QMB Scooter Engines","description":"81cc high performance cylinder kit for 50cc GY6 139QMB scooter engines, by manufacturer NCY.\u003cbr\u003e\n\u003cbr\u003e\nThis scooter upgrade kit is a high quality kit that is perfect for upgrading your old 50cc 139QMB engine to 81cc so you don’t get left behind in today’s fast paced world.\u003cbr\u003e\n\u003cbr\u003e\nInstalling this upgrade kit will increase your engine bore size to 81cc, and includes an aluminum cylinder, 50 mm piston, piston rings, and gaskets.\u003cbr\u003e\n\u003cbr\u003e\nAfter installation, you will see an immediate increase in low end acceleration and an increase in top speed!\u003cbr\u003e\n\u003cbr\u003e\nThis 81cc scooter cylinder kit does not include the cylinder head. Use this kit with the NCY 50 mm cylinder head which can be found here:\u003cbr\u003e\n\u003cbr\u003e\n\u003ca href=\"http:\/\/www.monstorscooterparts.shop\/50cc-high-performance-cylinder-head.html\"\u003e50 mm High Performance Scooter Cylinder Head\u003c\/a\u003e\u003cbr\u003e\n\u003cbr\u003e\nCombine this kit with a high performance carburetor and exhaust for an even larger boost in performance.","brand":"NCY","offers":[{"title":"Default Title","offer_id":44337105895586,"sku":"K72-7917","price":209.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/70cc-high-performance-scooter-engine-kit_1.jpg?v=1774816269"},{"product_id":"81cc-high-performance-50-mm-cylinder-head-for-gy6-139qmb-scooter-engines","title":"81cc High Performance 50 mm Cylinder Head for GY6 139QMB Scooter Engines","description":"\u003cp\u003eThis is our high performance 50 mm cylinder head by NCY.\u003cbr\u003e\u003cbr\u003eThe 50 mm cylinder head is for use with NCY 81cc cylinder kits, and is compatible with 50cc GY6 139QMB engines.\u003cbr\u003e\u003cbr\u003eLet Monster Scooter Parts be your source for NCY scooter parts and accessories.\u003cbr\u003e\u003cbr\u003e1100-1239\u003c\/p\u003e","brand":"NCY","offers":[{"title":"Default Title","offer_id":44337106059426,"sku":"K72-7919","price":269.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/k72-7919_1.jpg?v=1774816283"},{"product_id":"72cc-piston-ring-set-for-50cc-gy6-qmb139-engine-big-bore-kits-5-rings","title":"72cc Piston Ring Set for 50cc GY6 QMB139 Engine Big Bore Kits (5 Rings)","description":"Our 72cc piston ring set for 50cc GY6 QMB139 engine big bore kits contains all five Rings. This is the same ring set that is included in our \u003ca href=\"http:\/\/www.monstorscooterparts.shop\/50cc-72cc-high-performance-scooter-engine-kit-.html\"\u003e72cc High Performance Cylinder Kit for 50cc GY6 QMB139 Scooter Engines (Standard)\u003c\/a\u003e.\u003cbr\u003e\n\u003cbr\u003e\n\u003cb\u003ePlease note that these rings are for the high performance 72cc piston, and will not fit the stock 139QMB 50cc piston.\u003c\/b\u003e\u003cbr\u003e\n\u003cbr\u003e\nIf all your GY6 engine needs are the rings, then this great deal from Monster Scooter Parts will save you money.","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337106124962,"sku":"K72-7920","price":3.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/72cc-piston-ring-set-gy6_1.jpg?v=1774816288"},{"product_id":"158cc-high-performance-cylinder-kit-for-125cc-150cc-gy6-scooter-engines","title":"158cc High Performance Cylinder Kit for 125cc \u0026 150cc GY6 Scooter Engines","description":"158cc high performance cylinder kit for 125cc \u0026amp; 150cc GY6 scooter engines, by manufacturer NCY.\u003cbr\u003e\n\u003cbr\u003e\nA high quality kit that can be used to upgrade 125cc \u0026amp; 150cc GY6 scooter engines to 158cc that is ideal for modern city and highway riding. Easy bolt on installation.\u003cbr\u003e\n\u003cbr\u003e\nUpgrading your 150cc GY6 has never been more convenient with this easy to install upgrade kit. This scooter upgrade kit increases your engine bore size to 158cc with a 61 mm piston diameter.\u003cbr\u003e\n\u003cbr\u003e\nIncludes an aluminum cylinder with piston, rings, and gaskets. You will see a direct increase in performance after installation with both enhanced low end acceleration and improved top speed.\u003cbr\u003e\n\u003cbr\u003e\nCombine this kit with a high performance carburetor and exhaust for an even larger boost in performance.\u003cbr\u003e\n\u003cbr\u003e\n\u003cb\u003eNCY\u003c\/b\u003e: 1100-1288","brand":"NCY","offers":[{"title":"Default Title","offer_id":44337106190498,"sku":"K72-7921","price":216.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/92cc-high-performance-scooter-engine-kit_1.jpg?v=1774816300"},{"product_id":"172cc-big-bore-kit-for-150cc-gy6-scooter-engines","title":"172cc Big Bore Kit for 150cc GY6 Scooter Engines","description":"Our 172cc Big Bore engine kit increases the 150cc GY6 engine bore size from 150cc to 172cc, enhancing performance for a better ride. Use this 172cc scooter cylinder kit to increase the low-end acceleration as well as your scooter's top speed. This kit includes the piston, cylinder, rings, gaskets, and more. \n\u003cbr\u003e\u003cbr\u003e\nAcceleration and top speed are two primary attributes of a GY6 powered motor scooter that dedicated street-scooterists demand, and the bigger the bore, the better the scooter's performance. \n\u003cbr\u003e\u003cbr\u003e\n\u003cb\u003eNote:\u003c\/b\u003e The 61 mm bore size is common to most Chinese-made 150cc GY6 horizontal engines. Some engines may require reaming.","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337106256034,"sku":"K72-7931","price":39.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/k72-7931--1.jpg?v=1774816312"},{"product_id":"racing-big-valve-cylinder-head-gy6-qmb139-engines-ncy","title":"Racing Big Valve Cylinder Head for GY6 QMB139 Engines","description":"This high quality racing big valve cylinder head for GY6 QMB139 engines is from NCY, the first name in aftermarket and replacement scooter parts.\u003cbr\u003e\n\u003cbr\u003e\nThe NCY 88cc aluminum alloy performance cylinder head is designed to give your QMB139 respectable power and performance. You can use this NCY cylinder on almost all Chinese made QMB139 engines.\u003cbr\u003e\n\u003cbr\u003e\nLet Monster Scooter Parts be your source for NCY scooter parts and accessories.\u003cbr\u003e\n\u003cbr\u003e\n1100-1435","brand":"NCY","offers":[{"title":"Default Title","offer_id":44337337532578,"sku":"N71-3727","price":174.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/racing-big-valve-cylinder-head-gy6-qmb139-engines-ncy_1.jpg?v=1774878500"},{"product_id":"68cc-cylinder-kit-for-1pe40qmb-minarelli-yamaha-jog-style-scooter-engines","title":"68cc Cylinder Kit for 1PE40QMB Minarelli Yamaha Jog Style Scooter Engines","description":"The 68cc cylinder kit for 1PE40QMB Minarelli Yamaha Jog Style Scooter Engines is made by NCY. This cast iron, 2-ring kit is Ideal for bikes intended for more regular use. The NCY 47mm cast iron Jog\/Minarelli 2-stroke cylinder is without the  head, so you need to reuse your stock head.\u003cbr\u003e\n\u003cbr\u003e\nThis is a simple bolt on 68cc kit for Minarelli based, air cooled, 2-stroke scooters with a 10mm wrist pin. Don't forget that with every 2-stroke cylinder kit upgrade, it may be necessary to put a tablespoon or so of two stroke oil in your gas tank with every fill up. We recommend Ipone oils for all of NCY's big bore kits. Both 1400-1005, City Oil 2 and OIL-IPCITY, Scoot City Strawberry Synthetic are great options.\u003cbr\u003e\n\u003cbr\u003e\nAlso, don't forget when putting a larger cylinder on your scooter, to up-jet your carburetor. We recommend starting your jetting rich and then working your way down to the perfect mix.\u003cbr\u003e\u003cbr\u003e\n\u003cb\u003eThe kit includes:\u003c\/b\u003e\u003cbr\u003e\n\u003cli\u003eAC iron cylinder\u003c\/li\u003e\n\u003cli\u003e47 mm bore (68cc with stock stroke)\u003c\/li\u003e\n\u003cli\u003eFive transfer ports \u003c\/li\u003e\n\u003cli\u003e10 mm wrist pin\u003c\/li\u003e\n\u003cli\u003eTwo compression rings\u003c\/li\u003e\n\u003cli\u003eOpen exhaust port\u003c\/li\u003e\n\u003cbr\u003e\nLet Monster Scooter Parts be your source for NCY scooter parts and accessories.","brand":"NCY","offers":[{"title":"Default Title","offer_id":44337337565346,"sku":"N71-3728","price":151.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/68cc-cylinder-kit-1pe40qmb-minarelli-yamaha-jog-style-scooter-engines-ncy_1.jpg?v=1774878502"},{"product_id":"70cc-cylinder-kit-1pe40qmb-minarelli-yamaha-jog-style-scooter-engines-ncy","title":"70cc Cylinder Kit for 1PE40QMB Minarelli Yamaha Jog Style Scooter Engines","description":"This is our high quality 70cc cylinder kit for 1PE40QMB Minarelli Yamaha Jog Style scooter engines from NCY. The NCY 47mm cast iron liquid cooled Jog\/Minarelli 2-stroke cylinder with head is a simple bolt on 72 cc kit for Minarelli, liquid cooled, 2-stroke scooters with a 12mm wrist pin.\u003cbr\u003e\n\u003cbr\u003e\nDon't forget that with every 2-stroke cylinder kit upgrade, it may be necessary to put a tablespoon or so of two stroke oil in your gas tank with every fill up. We recommend Ipone oils for all of NCY's big bore kits. Both 1400-1005, City Oil 2 and OIL-IPCITY, Scoot City Strawberry Synthetic are great options.\u003cbr\u003e\n\u003cbr\u003e\nAlso, don't forget when putting a larger cylinder on your scooter, to up-jet your carburetor. We recommend starting your jetting rich and then working your way down to the perfect mix.\u003cbr\u003e\n\u003cbr\u003e\nThe kit includes:\u003cbr\u003e\n\nLC iron cylinder \u003cbr\u003e\n\n47 mm bore \u003cbr\u003e\n\n5 transfer ports \u003cbr\u003e\n\n12 mm wrist pin \u003cbr\u003e\n\nSingle compression ring \u003cbr\u003e\n\nBridged exhaust port\u003cbr\u003e\n\u003cbr\u003e\nLet Monster Scooter Parts be your source for NCY scooter parts and accessories.\u003cbr\u003e\n\u003cbr\u003e\n1100-1241","brand":"NCY","offers":[{"title":"Default Title","offer_id":44337337598114,"sku":"N71-3729","price":149.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/70cc-cylinder-kit-1pe40qmb-minarelli-yamaha-jog-style-scooter-engines-ncy_1.jpg?v=1774878504"},{"product_id":"72cc-cylinder-kit-for-50cc-gy6-qmb139-engines","title":"72cc Cylinder Kit for 50cc GY6 QMB139 Engines","description":"Here is our 72cc cylinder kit for 50cc GY6 QMB139 engines from NCY.\u003cbr\u003e\n\u003cbr\u003e\nThe NCY GY 50\/QMB139 47 mm bore, cast iron, cylinder kit without head is our most popular big bore kit for the QMB139\/GY6 50 scooter engine. Unlike some other big bore cylinder kits, this one bolts right on. All  in all, the 72cc kit really goes together relatively easily and does exactly what it is that you want it to do.\u003cbr\u003e\n\u003cbr\u003e\nLet Monster Scooter Parts be your source for NCY scooter parts and accessories.\u003cbr\u003e\n\u003cbr\u003e\n1100-1247","brand":"NCY","offers":[{"title":"Default Title","offer_id":44337337630882,"sku":"N71-3730","price":184.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/72cc-cylinder-kit-50cc-gy6-qmb139-engines-ncy_1.jpg?v=1774878506"},{"product_id":"88cc-cylinder-kit-50cc-gy6-qmb139-engines-ncy","title":"88cc Cylinder Kit for 50cc GY6 QMB139 Engines","description":"Here is our high quality 88cc cylinder kit for the 50cc GY6 QMB139 engines from NCY. The 52 mm cast iron cylinder kit comes without head.\u003cbr\u003e\n\u003cbr\u003e\nPlease note that this 88cc big bore kit is not a bolt on item for most QMB 139 scooters. Engine cases must be cut or machined to fit.\u003cbr\u003e\n\u003cbr\u003e\nLet Monster Scooter Parts be your source for NCY scooter parts and accessories.\u003cbr\u003e\n\u003cbr\u003e\n1100-1248","brand":"NCY","offers":[{"title":"Default Title","offer_id":44337337696418,"sku":"N71-3731","price":175.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/88cc-cylinder-kit-50cc-gy6-qmb139-engines-ncy_4.jpg?v=1774878516"},{"product_id":"big-valve-cylinder-head-150cc-gy6-engines-ncy","title":"Big Valve Cylinder Head for 150cc GY6 Engines","description":"\u003cp\u003eThis high quality big valve cylinder head for 150cc GY6 engines is from NCY, a respected brand of replacement aftermarket scooter parts.\u003cbr\u003e\u003cbr\u003eThe large 2-valve head for Buddy 150\/GY6 will help your cylinder breathe better. We recommend a larger intake manifold with this head.\u003cbr\u003e\u003cbr\u003eLet Monster Scooter Parts be your source for NCY scooter parts and accessories.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"NCY","offers":[{"title":"Default Title","offer_id":44337338122402,"sku":"N71-3742","price":262.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/n71-3742_2.jpg?v=1774878836"},{"product_id":"ceramic-cylinder-kit-for-150cc-gy6-engines","title":"Ceramic Cylinder Kit for 150cc GY6 Engines","description":"This high quality ceramic cylinder kit for 150cc GY6 engines is from NCY. The bolt on NCY GY6 150 58.5 mm kit without head will allow regular running at higher RPMs due to its ceramic coating.\u003cbr\u003e\n\u003cbr\u003e\nDon't forget when putting a larger cylinder on your scooter, to up-jet your carburetor. We recommend starting your jetting rich and then working your way down to the perfect mix.\u003cbr\u003e\n\u003cbr\u003e\nLet Monster Scooter Parts be your source for NCY scooter parts and accessories.\u003cbr\u003e\n\u003cbr\u003e\n1100-1012","brand":"NCY","offers":[{"title":"Default Title","offer_id":44337338679458,"sku":"N71-3759","price":222.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/ceramic-cylinder-kit-150cc-gy6-engines-ncy.jpg?v=1774878328"},{"product_id":"158cc-cylinder-kit-for-125cc-yamaha-scooters","title":"158cc Cylinder Kit for 125cc Yamaha Scooters","description":"This high quality accessory is the 158cc cylinder kit for 125cc Yamaha Scooters from NCY.\u003cbr\u003e\n\u003cbr\u003e\nThe bolt on 158cc big bore kit will give your Yamaha Zuma 125 some extra kick with the 59mm cast iron cylinder without head.\u003cbr\u003e\n\u003cbr\u003e\nLet Monster Scooter Parts be your source for NCY scooter parts and accessories.\u003cbr\u003e\n\u003cbr\u003e\n1100-1263","brand":"NCY","offers":[{"title":"Default Title","offer_id":44337339269282,"sku":"N71-3785","price":228.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/158cc-cylinder-kit-125cc-yamaha-scooters-ncy_1.jpg?v=1774878727"},{"product_id":"177cc-cylinder-kit-125cc-150cc-gy6-engines-ncy","title":"177cc Cylinder Kit for 125cc and 150cc GY6 Engines","description":"This high quality 177cc cylinder kit for 125cc and 150cc GY6 engines is from NCY.\u003cbr\u003e\n\u003cbr\u003e\nThe 177.5cc\/62 mm ceramic kit without head features a ceramic coating which allows the engine to run at a much higher RPM than normal.\u003cbr\u003e\n\u003cbr\u003e\n\u003cb\u003eNote:\u003c\/b\u003e This is not a bolt on item for most GY6125\/150 engines, and you may have to have your engine case cut.\u003cbr\u003e\n\u003cbr\u003e\nLet Monster Scooter Parts be your source for NCY scooter parts and accessories.\u003cbr\u003e\n\u003cbr\u003e\n1100-1014","brand":"NCY","offers":[{"title":"Default Title","offer_id":44337339334818,"sku":"N71-3786","price":209.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/177cc-cylinder-kit-125cc-150cc-gy6-engines-ncy_1.jpg?v=1774878729"},{"product_id":"liquid-cooled-70mm-cylinder-head-50cc-1pe40qmb-minarelli-yamaha-jog-style-engines-ncy","title":"Liquid Cooled 47 mm Cylinder Head for 50cc 1PE40QMB Minarelli Yamaha Jog Style Engines","description":"This high quality accessory is the liquid cooled 72cc cylinder head for 50cc 1PE40QMB Minarelli Yamaha Jog Style Engines from NCY.\u003cbr\u003e\n\u003cbr\u003e\nThe NCY 47 mm ceramic liquid cooled Jog\/Minarelli 2-stroke cylinder with head is a simple bolt on ceramic 70 cc kit for Minarelli based, liquid cooled, 2-stroke scooters with a 12mm wrist pin. The kit will let a scooter run at high RPMs regularly. The ceramic coat allows for the engine to run a much higher RPM than normal.\u003cbr\u003e\n\u003cbr\u003e\nDon't forget that with every 2-stroke cylinder kit upgrade, it may be necessary to put a tablespoon or so of two stroke oil in your gas tank with every fill up. We recommend Ipone oils for all of NCY's big bore kits. Both 1400-1005, City Oil 2 and OIL-IPCITY, Scoot City Strawberry Synthetic are great options.\u003cbr\u003e\n\u003cbr\u003e\nAlso, don't forget when putting a larger cylinder on your scooter, to up-jet your carburetor. We recommend starting your jetting rich and then working your way down to the perfect mix.\u003cbr\u003e\n\u003cbr\u003e\nLC ceramic plated aluminum cylinder kit\u003cbr\u003e\n \n47 mm bore (68cc with Stock Stroke) \u003cbr\u003e\n\n5 Transfer ports \u003cbr\u003e\n\n12 mm wrist pin \u003cbr\u003e\n\nSingle compression ring \u003cbr\u003e\n\nBridged exhaust port\u003cbr\u003e\n\u003cbr\u003e\nLet Monster Scooter Parts be your source for NCY scooter parts and accessories.\u003cbr\u003e\n\u003cbr\u003e\n1100-1243","brand":"NCY","offers":[{"title":"Default Title","offer_id":44337342021794,"sku":"N71-3853","price":159.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/liquid-cooled-70mm-cylinder-head-50cc-1pe40qmb-minarelli-yamaha-jog-style-engines-ncy_1.jpg?v=1774879441"},{"product_id":"fuel-filter-version-5","title":"Universal In-Line Plastic Fuel Filter","description":"\u003cp\u003eUniversal in-line plastic fuel filter for scooters, ATVs, dirt bikes, motorcycles, go-karts, dune buggies, and more.\u003c\/p\u003e","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337360076962,"sku":"O39-4687","price":0.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/O39-4687-1.jpg?v=1774882857"},{"product_id":"6301-2rs-6301rs-bearings","title":"6301-2RS (6301RS) Sealed Scooter Wheel Bearings (Set of 2)","description":"Set of 2 6301-2RS sealed wheel bearings for gas and electric scooters. This bearing is also known as 6301RS.\u003cbr\u003e\n\u003cbr\u003e\nThis is a widely used size bearing and it can be used in various applications. Made from chrome steel, these bearings can rotate up to 15,000 RPM. Each bearing has 2 rubber seals to protect the bearing from dust or any possible contamination. Bearings are pre-lubricated with grease.\u003cbr\u003e\n\u003cbr\u003e\nThe 6301-2RS wheel bearing is an upgraded bearing to be used in place of the 6301ZZ wheel bearing. 6301-2RS bearings use rubber seals in place of metal shields for superior protection against dirt, dust, and grime, thereby increasing the lifespan of the bearings.\u003cbr\u003e\n\u003cbr\u003e\n12mm inside diameter, 37mm outside diameter, 12mm thickness.\u003cbr\u003e\n\u003cbr\u003e\nNote that 1 set is required for each wheel.","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337632542882,"sku":"S29-3712","price":3.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/6301-2rs-6301rs-bearings_1.jpg?v=1774590385"},{"product_id":"6002zz-6002z-shielded-scooter-atv-bearings-set-of-2","title":"6002ZZ (6002Z) Shielded Scooter \u0026 ATV Bearings (Set of 2)","description":"6002ZZ (6002Z) metal shielded bearings used on many scooters, ATVs, mini bikes, dirt bikes, and go karts. This is a set of two bearings.\u003cbr\u003e\n\u003cbr\u003e\nPlease check the specifications tab for detailed dimensions on these 6002ZZ bearings.\u003cbr\u003e\n\u003cbr\u003e\nChrome metal shields on both sides of the bearing shield  the inner ball bearings from the elements.\u003cbr\u003e\n\u003cbr\u003e\nThese 6002ZZ (6002Z) scooter bearings are made of chrome steel and are pre-lubricated. Ready to install.\u003cbr\u003e\n\u003cbr\u003e\nAlways replace scooter and ATV wheel bearings in sets of two.\u003cbr\u003e\n\u003cbr\u003e\nKnown markings:\n\u003cli\u003e6002ZZ\u003c\/li\u003e\n\u003cli\u003e6002Z\u003c\/li\u003e\n\u003cli\u003e6002-ZZ\u003c\/li\u003e\n\u003cli\u003e6002-2Z\u003c\/li\u003e","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337806016674,"sku":"X98-1254","price":5.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/s29-3681_1.jpg?v=1774719431"},{"product_id":"6002-2rs-6002rs-sealed-scooter-atv-bearings-set-of-2","title":"6002-2RS (6002RS) Sealed Scooter \u0026 ATV Bearings (Set of 2)","description":"6002-2RS (6002RS) sealed bearings used on many scooters, ATVs, mini bikes, dirt bikes, and go karts. This is a set of two bearings.\u003cbr\u003e\n\u003cbr\u003e\nHigh temperature plastic seals on both sides of the bearing seal the inner ball bearings from the elements.\u003cbr\u003e\n\u003cbr\u003e\nThese 6002-2RS (6002RS) scooter bearings are made of chrome steel and are pre-lubricated. Ready to install.\u003cbr\u003e\n\u003cbr\u003e\nKnown markings:\n\u003cli\u003e6002-2RS\u003c\/li\u003e\n\u003cli\u003e6002-2RS1\u003c\/li\u003e\n\u003cli\u003e6002RS\u003c\/li\u003e","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337806278818,"sku":"X98-1262","price":4.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/s29-3682_1_1.jpg?v=1774718446"},{"product_id":"6004zz-6004z-bearings","title":"6004ZZ (6004Z) Shielded Scooter \u0026 ATV Bearings (Set of 2)","description":"6004ZZ (6004Z) metal shielded bearings used on many scooters, ATVs, mini bikes, dirt bikes, and go karts. This is a set of two bearings.\u003cbr\u003e\n\u003cbr\u003e\nPlease check the specifications tab for detailed dimensions on these 6004ZZ bearings.\u003cbr\u003e\n\u003cbr\u003e\nChrome metal shields on both sides of the bearing shield the inner ball bearings from the elements.\u003cbr\u003e\n\u003cbr\u003e\nAlways replace scooter and ATV wheel bearings in sets of two.\u003cbr\u003e\n\u003cbr\u003e\nKnown markings: \u003cbr\u003e\n\n6004ZZ \u003cbr\u003e\n\n6004Z \u003cbr\u003e\n\n6004-ZZ \u003cbr\u003e\n\n6004-2Z","brand":"Monster Scooter Parts","offers":[{"title":"Default Title","offer_id":44337814438050,"sku":"X98-2053","price":4.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/6943\/0690\/files\/s29-3687_1.jpg?v=1774719922"}],"url":"https:\/\/monstorscooterparts.shop\/collections\/street-scooters-engine-parts.oembed","provider":"Monster Scooter Parts","version":"1.0","type":"link"}