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4.11
PROBLEM
CAUSE
CORRECTION
Rough running
Engine overheating
Choke not operating
Faulty fuel pump
Idle speed too low
Faulty ignition system components
Clogged fuel filter
Contaminated fuel
Fuel lines or fuel tank vent line kinked
or clogged
Flame arrestor plugged with foreign
material or air intake hose obstructed
Bad sending or receiving unit
Loose wiring connections at sending or
receiving unit
Check choke linkages for binding or
obstruction.
Refer to your engine manual for fuel
pump testing procedures.
Check idle speed, adjust as required.
Service ignition system (See your
engine manual).
Replace fuel filter.
Inspect fuel for water or other contami-
nants. If contaminated, drain tank then
flush with fresh fuel.
Use compressed air (20 psi or less)to
blow out obstruction. Replace line if
kinked.
Clean flame arrestor and check hose.
Replace unit(s).
Tighten all connections.
WARNING:
Wear protective eye
wear when performing compressed
air cleaning.
4.11
PROBLEM
CAUSE
CORRECTION
Rough running
Engine overheating
Choke not operating
Faulty fuel pump
Idle speed too low
Faulty ignition system components
Clogged fuel filter
Contaminated fuel
Fuel lines or fuel tank vent line kinked
or clogged
Flame arrestor plugged with foreign
material or air intake hose obstructed
Bad sending or receiving unit
Loose wiring connections at sending or
receiving unit
Check choke linkages for binding or
obstruction.
Refer to your engine manual for fuel
pump testing procedures.
Check idle speed, adjust as required.
Service ignition system (See your
engine manual).
Replace fuel filter.
Inspect fuel for water or other contami-
nants. If contaminated, drain tank then
flush with fresh fuel.
Use compressed air (20 psi or less)to
blow out obstruction. Replace line if
kinked.
Clean flame arrestor and check hose.
Replace unit(s).
Tighten all connections.
WARNING:
Wear protective eye
wear when performing compressed
air cleaning.