red side

Poor performance or black smoke

Poor Performance or Black Smoke


Possible Cause

   

Possible Remedy

Improper fuel (gasoline) in tank

   

Drain tank, flush system, fill with proper fuel

Air in the fuel system

   

Bleed fuel system, eliminate air leaks

Injection lines blocked or restricted

 

Drill to nominal I.D. or replace

Pump-to-engine timing incorrect

 

Readjust timing

Injection nozzle defective

 

Replace or repair

Engine air filter blocked

 

Replace air filter element

Injection sequence does not correspond to firing order

 

Install fuel injection lines in the correct order

Cold start device malfunction

 

Check cold start mechanism

Low or uneven engine compression

 

Repair as necessary

Fuel injection pump defective or cannot be adjusted

 

Remove pump and service

 

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