Pre-Check: Ensure the unit is on level ground and check both oil and fuel levels. Never start the generator with a connected electrical load.Safety First: Confirm the main AC circuit breaker (air switch) is in the "OFF" position.Fuel System: Open the fuel valve. If it's the first start in a long time, you may need to use the manual fuel pump to bleed air from the system.Engine Control: Move the engine speed lever to the "RUN" or high-speed position.Starting (Electric): Insert the key and turn it to the "START" position until the engine fires, then release it immediately.Note: For cold starts, some models have a preheating device that should be held for 30–60 seconds before cranking.Warm-up: Allow the engine to idle for 3–5 minutes to stabilize before flipping the circuit breaker to "ON" and applying a load.