Blue Line Carburetor (CVK,19mm); QMB139

SKU 1100-1361
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This is a high quality 19mm CVK replacement carburetor for all GY6 4-stroke 139QMB 49/50cc Chinese engines. This carburetor is fitted with an 85 main jet. It's better than stock and boasts a larger venturi and an accelerator pump, which will frequently eliminate hesitation when you open her up.


- Accelerator pump

- Electric choke (2-pin male plug),

- Fuel and drain lines,

- Fuel filter

- Pre-tuned jetting for most applications.

- Quick-drain valve


This carburetor is used on Baja, JMstar, Jonway, Lance, NST, Peace, Roketa, Sunl, Tank, TNG, Vento, VIP and many others.

This product is not intended for use on public roads or land.


Auto choke

Accelerator pump

Remote float bowl

Venturi: 19mm

Airbox side: ID 29mm, OD 39mm

Engine side: ID 19mm, OD 28mm



Main: 85 (4mm thread PB)

Pilot: 35 (6mm thread CV)

Needle: Non-adjustable GY50 A4

Compatible jets-

Main: JETKH1

Pilot: CV style

  • Same day shipping for orders placed before 2PM (CST) M-F
  • 30-day return period
  • Flat-rate shipping for orders shipped to the 48 Contiguous United States.
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