Generator emits visible white, blue, or black smoke from the exhaust during operation.

Safety first: Operate the generator outdoors or in a properly vented enclosure only. Avoid breathing exhaust fumes.

• Identify smoke color: White smoke may indicate unburned fuel or coolant (liquid-cooled models), blue smoke indicates oil burning, and black smoke indicates rich fuel mixture.
• Check air filter: Replace a clogged air filter that can cause rich running and black smoke.
• Inspect oil level: Overfilled oil can cause blue smoke. Adjust to the correct level.
• Fuel quality: Drain and replace contaminated or incorrect fuel.
• If heavy smoke persists: Internal engine or fuel system issues may exist; professional diagnosis is recommended.