Carburetor Adjustment - Zenoah G320PUM Owner's Manual

Carburetor Adjustment

The carburetor is provided with 3 adjust screws they may need a little adjustment
depending on the temperature, atmospheric pressure (altitude), and an exhaust
system, etc. of the area where the engine is used. Start the engine without making
any adjustments. Make readjustments only when the engine shows any mal-running.
High Speed needle
Standard opening at the begining of each needle as follows;
7
1 /
10
H L
1 3 1
± / 1 / ± /
8 4 8
Low Speed needle
Idle Screw
4