Troubleshooting
Do not attempt to service or replace major engine components, or any items that require special
timing or adjustment procedures. This work should be performed by a Kohler portable dealer.
Possible Cause
Air cleaner blocked
Fuel level too low
Blocked fuel fi lter (E)
Fuel supply blocked
or leaking
Level of liquid being
pumped is too low
Water level too low
in pump body
Intake is blocked
Half-couplings not making
an airtight connection
Inadequate tightening
of pump drain plug (V)
Air in suction circuit
Engine speed control
lever (Q) set to MIN
position
Pipe too long or bent
Suction side is
too high up
Pipes leaking
Clogging-up of impeller
Wearing of impeller
Damage to
mechanical seal
Loss of engine power
39 590 01 Rev. A
Engine Not
Engine Stopped
Starting
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KohlerPower.com
Problem
Automatic
Priming Fault
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EN
Low Flow
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