QMB139 Big Bore Carburetor - GY650
QMB139 Big Bore Carburetor - GY650
QMB139 Big Bore Carburetor - GY650
QMB139 Big Bore Carburetor - GY650
Rolling Wrench

QMB139 Big Bore Carburetor - GY650

Regular price $175.00 $0.00
Shipping calculated at checkout.

Are you wanting to increase the performance and how snappy that throttle is? Look no further! This QMB139 (GY6 50cc) carburetor kit comes with a round slide carburetor, Uni pod air filter, large ported intake manifold, cable and jets! Not to mention this is all put together! This is a drop in kit!! We send the carburetor out with a base tune for a sea level altitude. You most likely will need to fine tune the carburetor. This is by far one of the best upgrade you can add to your 80cc - 100cc GY6 big bore kit.

 

Installed Jet:

pilot: 38

main: 135

 

If you want to take the guess work out of any tuning you may need to do, check out our Wide Band O2 Sensor. 

 

EXTRA PILOT JETS INCLUDED:

32

35

38

40

42

45

48

50

52

55

EXTRA MAIN JETS INCLUDED:

100

105

108

110

115

120

125

130

135

140


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