How do you prime a onan diesel generator?

To prime an Onan diesel generator, first ensure the generator is off and the fuel supply is turned on. Locate the fuel primer bulb, typically found on the fuel line, and squeeze it until you feel resistance, indicating that fuel is flowing. If there’s a manual priming pump, use it according to the manufacturer’s instructions. Finally, check for any air bubbles in the fuel line before starting the generator to ensure proper operation.