red side

Low Power

Low Power


Possible Cause

   

Possible Remedy

Improper fuel (gasoline) in tank

   

Drain tank, flush system, fill with proper fuel

Tank empty or tank vent blocked

   

Fill tank/bleed system, check tank vent

Fuel filter blocked

 

Replace fuel filter

Injection lines blocked or restricted

 

Drill to nominal I.D. or replace

Fuel-supply lines blocked-resticted

 

Test all fuel supply lines - flush or replace

Loose connections, injection lines leak or broken

 

Tighten the connection, eliminate the leak

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

Maximum speed misadjusted

 

Readjust maximum speed screw

Overflow fitting interchanged with inlet fitting

 

Install fittings in their proper positions

Low or uneven engine compression

 

Repair as necessary

Fuel injection pump defective or cannot be adjusted

 

Remove pump and service

 

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