Fuel Pressure: Testing and Inspection
Fuel Pump Pressure Test1. Disconnect fuel line at carburetor and connect a suitable pressure gage.
2. Start engine and check pressure with engine running at slow idle speed. Fuel pump pressure should be as specified.
3. Fuel pump pressure should be 27.5 - 44.8 kPa (4.0 - 6.5 psi), if pressure is less, check for restrictions or replace the pump.