Perkins Over‑Fueling / Incomplete Combustion

Excessive black smoke from exhaust during operation

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, Turbocharger not producing boost, Sticking injectors, Overloaded generator

Safety: Operate in a well‑ventilated area. Prolonged black smoke indicates stress on the engine.

Air intake: Replace the air filter and check intake ducting for obstructions.
Load check: Reduce load to within generator rating and observe if smoke decreases.
Turbo inspection: Ensure boost hoses are intact and turbo spins freely (see E026).
Injector service: If smoke persists at normal load, have the Perkins injectors tested and serviced or replaced.

Hard 4/5

Fuel Injector Set

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