White or blue smoke from the exhaust when the generator is running.

Safety first: Operate the generator in a well-ventilated outdoor area. Avoid inhaling exhaust fumes.

• Check oil level: Ensure oil is not above the maximum mark. Drain excess oil if overfilled.
• Replace air filter: A clogged air filter can cause rich mixture and smoke. Install a new air filter element.
• Observe smoke pattern: Blue smoke that persists suggests oil burning from worn rings or seals, requiring engine overhaul. White smoke on diesel models may indicate injector or compression issues.
• Compression test: Have a technician perform a compression test on the Lifan engine to confirm internal wear.