Honda Marine BF40A Owner's Manual page 108

12. TROUBLESHOOTING
(2) Engine starts but immediately stops. Engine some
times stops while cruising.
Fuel
l
No gasoline in fuel tank.
l
There is gasoline -
in fuel tank.
Water is mixed with
gasoline.
Vent knob is not open
or vent is clogged.
Fuel filter is clogged.
Air screw is open too
wide.
Idling speed is too slow.
- Carburetor vent is
clogged.
- Fuel pump is faulty.
- Air in fuel pump.
- Air enters through fuel
line connector.
- Air enters through primer
bulb.
Engine overheats
l
Normal sparking
l-l
Water intake screens
are clogged.
Spark
plug is not of speci-
fied rating.
Water pump is faulty.
- Thermostat is clogged.
- Thermostat is faulty.
- Water tube or passage
is clogged.
Exhaust gas is entering
cooling system.
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