Himoinsa Overfueling / Restricted Air Intake

The generator starts but produces excessive black smoke from the exhaust under load.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Clogged air filter element, Generator overloaded beyond rated kW, Sticking fuel injector, Turbocharger not boosting

Safety: Keep clear of hot exhaust components. Ensure adequate ventilation around the generator.

Check load: Reduce electrical load to within the Himoinsa generator's rated capacity and observe the smoke level.
Inspect air filter: Open the air filter housing and inspect the element. Replace if dirty or clogged.
Turbocharger check: With the engine off and cool, inspect the turbocharger for free rotation and absence of oil leaks.
Injector service: Persistent black smoke at normal load may indicate worn or sticking injectors. Have a diesel technician test and service the injectors.

Medium 3/5

Air Filter Element

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