Blue Line 19mm CVK Carburetor w/ Accel Pump | 139QMB
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Upgrade your 139QMB-powered 50cc scooter's fuel delivery with this Blue Line 19mm CVK replacement carburetor. The larger-than-stock 19mm venturi improves airflow and fuel atomization, while the mechanical float-bowl accelerator pump eliminates the bog and hesitation common when opening the throttle quickly. Fitted with an #85 main jet and electric choke. A direct-fit replacement for all 139QMB Chinese engines. Venturi: 19mm Electric choke: 2-pin male plug style Accelerator pump: mechanical float-bowl type Airbox side: ID 29mm / OD 38mm Engine side: ID 19mm / OD 28mm Main jet: #85 (4mm thread PB style) Pilot jet: #35 (6mm thread CV style) Needle: non-adjustable GY50 A4 Compatible jets — main: JETKH1 | pilot: CV style | idle: #34 Compatible Engine Codes: 139QMA, 139QMB, 1P39QMB, 1P39QMA-2, YN139QMB, JJ1P39QMB, 139FMA-2, BD1P39QMB, BN139QMB, 147QMD Other QMA and QMB variants — if your engine code includes "QM" or "FM" this carb is compatible California Prop 65 Warning: www.p65warnings.ca.gov
Shipping information
Use this text to share information about your product.
Returns & warranty
Use this text to share information about your product.