4. MAINTENANCE 7. Bleeding the Fuel System Air must be removed from the fuel after replacement of the fuel filter element, or when the tank has been run out of fuel, before starting the engine. To remove air, ensure the fuel inlet shut - off located on the side of the fuel tank is open (Fig. 4.8F). Open the bleed valve by turning it counter clockwise (Fig. 4.8G) on top of the injector pump. Place the throttle at idle, then turn the engine over with the starter. After the engine starts and runs smoothly, shut off the engine and close the bleed valve by turning it clockwise. Fig 4.8F Fuel Inlet Shut - off C3955 52 Fuel Air Bleed Valve C3789 Fig. 4.8G C3789 Fig. 4.8G