{"product_id":"ncy-cylinder-kit-aluminum-61mm-171cc-genuine-gy6-1100-1288","title":"NCY Cylinder Kit (Aluminum, 61mm, 171cc); Genuine\/GY6","description":"\u003cp\u003eThe \u003cstrong\u003eNCY 61mm Big Bore Cylinder Kit\u003c\/strong\u003e is a high-performance 171.3cc bolt-on upgrade designed to significantly boost the power and torque of Genuine Buddy 150\/170i scooters and 125\/150cc GY6-based bikes. Constructed from lightweight aluminum for superior heat dissipation, this kit is the only 61mm cylinder available in the U.S. that features a smaller outer skirt diameter (62.99mm), allowing for installation \u003cstrong\u003ewithout cutting or machining the engine cases\u003c\/strong\u003e.\u003c\/p\u003e\u003cp\u003e\u003cem\u003e\u003cstrong\u003eNotice:\u003c\/strong\u003e This product is intended for off-road or racing use only and is not legal for use on public roads or pollution-controlled vehicles in California.\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eFeatures \u0026amp; Benefits:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBolt-On Performance:\u003c\/strong\u003e No engine case modifications required due to the slim 62.99mm cylinder skirt.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior Cooling:\u003c\/strong\u003e Aluminum construction ensures the engine stays cooler under high-stress conditions compared to cast iron.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight Piston:\u003c\/strong\u003e Includes a high-performance, cut-down piston to reduce reciprocating mass and increase RPM response.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications:\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisplacement:\u003c\/strong\u003e 171.3cc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBore Size:\u003c\/strong\u003e 61mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOuter Skirt Diameter:\u003c\/strong\u003e 62.99mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Aluminum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e Cylinder, Piston, Rings, Wrist Pin, Clips, Base Gasket, and Head Gasket.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDetailed Model Fitment:\u003c\/h3\u003e\u003cp\u003eThis kit is compatible with most 125cc and 150cc 4-stroke engines (GY6\/QMI152\/QMJ157) and specific Genuine Scooter Co. models:\u003c\/p\u003e\u003ch4\u003eGenuine Scooter Co.\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuddy:\u003c\/strong\u003e 150, 150 Anniversary, 170i\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHooligan:\u003c\/strong\u003e 170i\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlur:\u003c\/strong\u003e 150\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eGY6 \/ Chinese Import Models (150cc):\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTaoTao:\u003c\/strong\u003e Powermax 150, Lancer 150, Quantum 150, VIP 150\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWolf Brand:\u003c\/strong\u003e Lucky 150, Jet II 150, EX-150, Blaze II 150\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIce Bear:\u003c\/strong\u003e PMZ150 series, Mojo, Padere, Knight\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePeace Sports:\u003c\/strong\u003e TPGS-808, TPGS-840, B08, Roar 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMS:\u003c\/strong\u003e Heritage 150, Chelsea 150, Grand Prix 150, Bemine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZNEN:\u003c\/strong\u003e Amstar, Eagle, Falcon 150, ZN150T series\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eEngine Code Compatibility:\u003c\/h4\u003e\u003cp\u003eFits engines with the following stamps:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e157QMJ \/ 1P57QMJ \/ JJ157QMJ \/ BN157QMJ\u003c\/li\u003e\n\u003cli\u003e152QMI \/ 1P52QMI\u003c\/li\u003e\n\u003cli\u003e161QMK \/ 1P61QMK \/ BN161QMK-A\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eDon't see your engine listed? If the engine code includes \"QM\" or \"FM\" this part is compatible with your vehicle.\u003c\/span\u003e\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003ePro Tip: \u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eWe recommend jetting this kit significantly richer due to its high-performance capabilities. To optimize both performance and efficiency, consider upgrading to our \u003ca href=\"https:\/\/www.scooterworks.com\/products\/ncy-cylinder-head-2-valve-big-valve-61mm-genuine-gy6\" title=\"NCY 61mm big valve head\"\u003e61mm big valve head\u003c\/a\u003e, as some stock heads may not be compatible.\u003c\/li\u003e\n\u003cli\u003eHave a look at our \u003ca title=\"Compression Tube Assembly\" href=\"http:\/\/www.scooterworks.com\/NCY-Oil-Decompression-Tube-GenuineGY6-P1023.aspx\"\u003eDecompression Tube Assembly\u003c\/a\u003e, which replaces your dipstick and allows excess crankcase pressure to be released. It’s a good idea to install one of these alongside any cylinder kit upgrade.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eVisit our \u003ca title=\"NIU KQi electric scooter parts\" href=\"https:\/\/www.scooterworks.com\/collections\/ncy-performance-parts\"\u003eNCY Performance Parts\u003c\/a\u003e page to shop all performance upgrades available for your vehicle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAbout NCY:\u003c\/strong\u003e NCY is the aftermarket performance parts leader for the most popular scooter brands, including Honda, Yamaha, Genuine, Vespa, SYM, Lance, KYMCO, and GY6 \/ QMB powered scooters. Made in Taiwan with strict quality standards since 1997, NCY is ISO 9001 certified.\u003c\/p\u003e\u003cp\u003eMade in Taiwan.\u003c\/p\u003e\u003ch4 style=\"color: #983d3c;\"\u003eThis product is intended for off-road use only.\u003c\/h4\u003e\u003ch4 style=\"color: #983d3c;\"\u003eThis product is not intended for use on public roads or land.\u003c\/h4\u003e\u003ch4 style=\"color: #983d3c;\"\u003eThis product is not legal for use in California on pollution-controlled vehicles. Check local laws before installing.\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003e*Performance upgrades are considered racing parts and are not covered by warranty.\u003c\/strong\u003e\u003c\/p\u003e","brand":"NCY","offers":[{"title":"Default Title","offer_id":47670781706405,"sku":"1100-1288","price":171.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0643\/2627\/1141\/files\/1100-1288_db6ff8fc-3dc4-4df1-b03f-700b9040abf8.jpg?v=1774953718","url":"https:\/\/classicscootersusa.com\/products\/ncy-cylinder-kit-aluminum-61mm-171cc-genuine-gy6-1100-1288","provider":"Classic Scooters USA","version":"1.0","type":"link"}