red side

Engine does not rev up

Engine Does Not Rev Up


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

Air in the fuel system

   

Bleed fuel system, eliminate air leaks

Fuel filter blocked

 

Replace fuel filter

Fuel-supply lines blocked-resticted

 

Test all fuel supply lines - flush or replace

Paraffin deposit in fuel filter

 

Replace filter, use winter fuel

Pump-to-engine timing incorrect

 

Readjust timing

Overflow fitting interchanged with inlet fitting

 

Install fittings in their proper positions

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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