Honda Outboard Motors BF25A Owner's Manual page 95

13. 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.
I Air screw is open too
L
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-
Water intake screens
ax! clogged.
l-l-L
Thermostat is faulty.
Spark plug is not of speci-
fied rating.
- Water pump is faulty.
- Thermostat is clogged.
- Water tube or passage
is clogged.
Exhaust gas is entering
cooling system.
93