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Blue Line 19mm CVK Carburetor w/ Accel Pump | 139QMB

Original price $0.00 - Original price $0.00
Original price $0.00
$50.00
$50.00 - $50.00
Current price $50.00
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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
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