Carburetor, Reed Valve Troubleshooting - PGO G-MAX 50 Service Manual

B. Troubleshooting:
a. Engine can not be started.
1.No fuel in the fuel tank.
2.Fuel pipe is blocked.
3.There is too much fuel in the cylinder.
4.Air cleaner is blocked.
b. Engine idling(RPM) unsteady, running not smoothly
1.Improper adjustment of the carburetor idling.
2.Ignition disorder.
3.Compression pressure is too low.
4.Air mixture is too thick.
5.Air mixture is too lean.
6.Air cleaner is blocked.
7.Air injection is not in good function.
8.Fuel is dirty.
c. Air mixture is too lean.
1.Carburetor main jet is blocked
2.The ventilation hole of the fuel tank cover is blocked.
3.Fuel filter is blocked.
4.Fuel pipe bended, squeezed or blocked.
5.Float valve is abnormal.
6.Fuel level is too low.
7.Air pipe is blocked.
d. Air mixture is too thick
1.Float valve is abnormal.
2.Fuel level is too high.
3.Air jet is blocked.