{"product_id":"qmb139-50cc-4-stroke-carburetor-20mm-intake","title":"Universal Parts 20mm PD20J CVK Carburetor - 139QMB","description":"\u003cp\u003eBring sharper throttle response to your big-bore scooter build with the \u003cstrong\u003eUniversal Parts PD20J 20 mm Type-2 Carburetor for compatible 139QMB \/ QMB139 four-stroke engines\u003c\/strong\u003e. Its accelerator pump supplies extra fuel as the throttle opens, while the electric choke supports cold starting.\u003c\/p\u003e\u003cp\u003eThis carburetor is primarily suited to 70cc+ big-bore conversions or compatible higher-displacement versions of the 139QMB engine family, with a 20 mm intake bore for increased airflow.\u003c\/p\u003e\u003ch2\u003eFeatures\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e20 mm Intake Bore:\u003c\/strong\u003e Supports the airflow needs of compatible big-bore engine builds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccelerator Pump:\u003c\/strong\u003e Adds fuel during throttle opening to help improve response.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectric Choke:\u003c\/strong\u003e Included cold-start enrichment unit with a two-pin male connector.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType-2 PD20J Design:\u003c\/strong\u003e Includes throttle linkage, cable bracket and float bowl.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupplied Jetting:\u003c\/strong\u003e #78 main jet and #33 idle jet provide a starting point for tuning.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Universal Parts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e 151-222\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer part number \/ model:\u003c\/strong\u003e PD20J\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarburetor type:\u003c\/strong\u003e Type 2, with accelerator pump\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntake bore:\u003c\/strong\u003e 20 mm inner diameter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine-side mount:\u003c\/strong\u003e 28 mm outer diameter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir-filter mount:\u003c\/strong\u003e 38 mm outer diameter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectric choke connector:\u003c\/strong\u003e Two-pin male plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMain jet:\u003c\/strong\u003e #78\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdle jet:\u003c\/strong\u003e #33\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of origin:\u003c\/strong\u003e China\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eModel Fitment\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eFor compatible 139QMB \/ QMB139 four-stroke engine configurations. Typically used with 70cc+ big-bore kits rather than as a universal stock-50cc replacement.\u003c\/strong\u003e\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModels \/ engine applications\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBaja\u003c\/td\u003e\n\u003ctd\u003eSC50, SC50-P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBaotian\u003c\/td\u003e\n\u003ctd\u003eBT50QT-11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePanterra\u003c\/td\u003e\n\u003ctd\u003eFreedom 50cc, Fusion 50cc, Retro 50cc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQingqi\u003c\/td\u003e\n\u003ctd\u003eQM50QT-4G, QM50QT-6V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSchwinn\u003c\/td\u003e\n\u003ctd\u003eHope 50, Laguna 50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBoss, CFMoto, Kymco, Lifan, SUNL, Tank, Vento, Verucci, Wildfire, X-Treme\u003c\/td\u003e\n\u003ctd\u003eCompatible QMB139-equipped applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOther makes\u003c\/td\u003e\n\u003ctd\u003eMatching 139QMB \/ QMB139 four-stroke builds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eMatch the 28 mm engine-side mount, 38 mm air-filter connection, throttle cable and linkage, choke connector, hose routing, and available clearance before ordering. The model list identifies engine-family applications, not guaranteed drop-in fitment for every year or configuration. Adjust jetting and fuel mixture for your displacement, intake and exhaust setup; supplied jets are not a guarantee of correct tuning for every build.\u003c\/p\u003e\u003cp\u003eThis product is intended for off-road use only. This product is not intended for use on public roads or land.\u003c\/p\u003e","brand":"Universal Parts","offers":[{"title":"Default Title","offer_id":67964497297729,"sku":"151-222","price":48.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1011\/7785\/2225\/files\/151-222_8c153263-3e4c-48e1-9376-84df7e21ea89.webp?v=1792993068","url":"https:\/\/azscooterparts.com\/products\/qmb139-50cc-4-stroke-carburetor-20mm-intake","provider":"AZScooterParts","version":"1.0","type":"link"}