Fuel Pressure - CARBURETED
- Ensure engine is at operating temperature. Disconnect fuel hose from carburetor. Connect a fuel pressure gauge to fuel hose end. Disconnect fuel return hose from fuel pump. Plug fuel pump return opening.
- Start and run engine at 1250 RPM. Refer to FUEL PUMP SPECIFICATIONS table. Turn engine off. With fuel hose disconnected from carburetor, place hose end into a container. Leave fuel return opening in fuel pump plugged.
- Start and run engine at 1250 RPM. Measure volume of fuel pumped in one minute. Refer to FUEL PUMP SPECIFICATIONS table.
FUEL PUMP SPECIFICATIONS
| Application | Pressure psi (kg/cm2 ) | Volume in One Min. Pts. (L) |
|---|---|---|
| Excel | 2.8-3.6 (.19-.25) | 1.7 (.80) |