Fuel Pressure: Testing and Inspection
PRESSURE TEST1. Connect a suitable pressure gauge (0-15 PSI) to the carburetor end of the fuel line.
WARNING: Use care to prevent combustion of spilled fuel.
2. Start the engine (it should be able to run for over 30 seconds on the fuel in the carburetor bowl) and read the pressure after 10 seconds. If pump pressure is too low or too high install a new fuel pump.
Fuel Pump Pressure 6.0-8.0 PSI
3. Reconnect fuel line at filter and install air cleaner.