Safety first: Disable AUTO mode and disconnect battery negative before working on fuel or starter circuits.

Confirm cranking speed: Ensure the engine cranks briskly. If slow, test and charge/replace the battery.
Check fuel supply: Verify there is fuel in the tank and that any fuel shutoff valves are open.
Bleed fuel system: Use the manual priming pump to bleed air from the primary and secondary filters and the injection pump bleed screws until fuel is free of bubbles.
Test fuel solenoid: During a start attempt, measure voltage at the fuel shutoff solenoid. If no voltage, trace back to the controller and crank relay. If voltage is present but no movement, replace the solenoid.
Observe exhaust: If there is no smoke during cranking, fuel is not reaching cylinders. If there is white smoke but no start, suspect compression or timing and call a technician.

Do not crank continuously for long periods; allow the starter to cool between attempts to avoid damage.

Generator cranks but will not start, no error code displayed

Possible Causes