Jianshe JS125-6B Maintenance Manual page 123

Loosen drain-hole screw
for several minutes.
Maintain the fuel liquidometer in verticality, making
it approach the reticle of the float chamber.
Measure the fuel level with fuel liquidometer
Note
The readings on the pipeline of the two sides of the
carburetor are equal.
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2. If the fuel level is not correct, adjusting:
Disassemble the carburetor
Check valve seating and needle valve
If both of them are normal, the floater tail
be bended to adjust fuel level.
Check the fuel level once more.
113
ENGINE
Fuel liquidometer
, warming the engine
should