{"product_id":"you-all-carburetor-cv-18mm-w-accelerator-pump-qmb139-1300-1115","title":"You-All CVK PD18J Carburetor w\/ Accelerator Pump -18mm","description":"\u003ch2\u003eYou-All 18mm CVK Carburetor - OEM PD18J Replacement\u003c\/h2\u003e\u003cp\u003eEliminate hesitation and restore consistent power to your 50cc scooter with the \u003cstrong\u003eYou-All 18mm CVK Carburetor (PD18J)\u003c\/strong\u003e. As our #1 selling carburetor, this unit is engineered to outperform standard OEM replacements by combining a larger venturi with a mechanical accelerator pump. Whether you are daily commuting on a Chicago Scooter Co. model or tuning a Honda Ruckus, this carburetor provides the precise fuel atomization needed for crisp throttle response and a rock-solid idle.\u003c\/p\u003e\u003ch3\u003ePerformance \u0026amp; Reliability Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical Accelerator Pump:\u003c\/strong\u003e Features a dedicated fuel-squirt circuit that eliminates \"bogging\" and hesitation during rapid throttle transitions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Flow Venturi:\u003c\/strong\u003e A larger-than-stock venturi increases flow and fuel atomization.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlack-Top CVK Dome:  \u003c\/strong\u003eThe black-top CVK dome and improved idle circuit deliver superior engine idle to prevent unstable idle surging and stalling found on many OEM 50cc carburetors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Jetting:\u003c\/strong\u003e Pre-installed with an #81 Main Jet and #33 Idle Jet, calibrated for immediate \"bolt-on\" performance on most 50cc-80cc engines.\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eComprehensive Fitment Guide\u003c\/h3\u003e\u003cp\u003eThis carburetor is the definitive replacement for \u003cstrong\u003e139QMB \/ GY6 50cc\u003c\/strong\u003e scooters and ATVs, including:\u003c\/p\u003e\u003ctable style=\"width: 100%; height: 97.9165px;\"\u003e\n\u003cthead\u003e\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003cth style=\"text-align: left; width: 30.036%; height: 19.5833px;\"\u003eBrand\u003c\/th\u003e\n\u003cth style=\"text-align: left; width: 67.0228%; height: 19.5833px;\"\u003eCompatible Models\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 30.036%; height: 19.5833px;\"\u003e\u003cstrong\u003eChicago Scooter Co.\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 67.0228%; height: 19.5833px;\"\u003ego., go. Max, Bella, 50, Nitro Sport\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 30.036%; height: 19.5833px;\"\u003e\u003cstrong\u003eWolf Brand Scooters\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 67.0228%; height: 19.5833px;\"\u003eRX-50, Islander, Rugby, Blaze, Lucky, Jet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 30.036%; height: 19.5833px;\"\u003e\u003cstrong\u003eLance Powersports\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 67.0228%; height: 19.5833px;\"\u003eCali Classic 50, Cabo 50, PCH 50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5833px;\"\u003e\n\u003ctd style=\"width: 30.036%; height: 19.5833px;\"\u003e\u003cstrong\u003eHonda\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 67.0228%; height: 19.5833px;\"\u003eRuckus \/ Metropolitan (Select 50cc Carb-Models)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 30.036%;\"\u003e\u003cstrong\u003e139QMB \/ GY6 50cc\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 67.0228%;\"\u003e139QMB \/ GY6 powered 50cc models and models with PD18J carburetors including scooters ATVs and Quads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cem\u003e*Technical Tip: If your engine code includes \"QM\" or \"FM\", this part is compatible with your vehicle.\u003c\/em\u003e\u003c\/p\u003e\u003chr\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e PD18J (CVK Type)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake Bore:\u003c\/strong\u003e 18mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir Filter Mount (OD):\u003c\/strong\u003e 40mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMain Jet:\u003c\/strong\u003e #81 \/ \u003cstrong\u003eIdle Jet:\u003c\/strong\u003e #33\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003cblockquote\u003e\n\u003cstrong\u003eMechanic's Note:\u003c\/strong\u003e After installation, ensure your \u003cstrong\u003e\u003ca href=\"https:\/\/www.scooterworks.com\"\u003eThrottle Cable\u003c\/a\u003e\u003c\/strong\u003e has a small amount of play to allow the accelerator pump to reset fully between twists!  \u003cstrong\u003eInstallation Tip:\u003c\/strong\u003e To prevent immediate clogging of the precision jets, we strongly recommend installing a new \u003cstrong\u003e\u003ca href=\"https:\/\/www.scooterworks.com\"\u003eFuel Filter\u003c\/a\u003e\u003c\/strong\u003e and draining your old gas tank. \u003c\/blockquote\u003e\u003cp style=\"font-size: 0.85em; color: #666;\"\u003e\u003cstrong\u003eSKU:\u003c\/strong\u003e 1300-1115 \u003cbr\u003e\u003cstrong\u003eVendor:\u003c\/strong\u003e You-All\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":"You-All","offers":[{"title":"Default Title","offer_id":46759065125144,"sku":"1300-1115","price":65.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0782\/1728\/1816\/products\/1300-1115_f68b65c1-5f98-4f4e-b096-43d6729f59ad.jpg?v=1695298799","url":"https:\/\/www.scooterworks.com\/products\/you-all-carburetor-cv-18mm-w-accelerator-pump-qmb139-1300-1115","provider":"Scooterworks USA, LLC","version":"1.0","type":"link"}