Fuel Level; Remove Cowling; Fuel System - Yamaha F250B Owner's Manual

Operation
ECM00120
NOTICE
Do not start the engine out of water. Over-
heating and serious engine damage can
occur.
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Fuel level

Be sure you have plenty of fuel for your trip. A
good rule is to use 1/3 of your fuel to get to the
destination, 1/3 to return, and to keep 1/3 as
an emergency reserve. With the boat level on
a trailer or in the water, turn the key to
" "(on) and check the fuel level. For fuel fill-
ing instructions, see page 59.
EMU36431

Remove cowling

For the following checks, remove the top
cowling from the engine. To remove the en-
gine cowling, release all the lock levers and lift
off the cowling.
54
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Fuel system

EWM00060
WARNING
Gasoline and its vapors are highly flam-
mable and explosive. Keep away from
sparks, cigarettes, flames, or other sourc-
es of ignition.
EWM00910
WARNING
Leaking fuel can result in fire or explosion.
Check for fuel leakage regularly.
G
If any fuel leakage is found, the fuel sys-
G
tem must be repaired by a qualified me-
chanic. Improper repairs can make the
outboard unsafe to operate.
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Check for fuel leaks
Check under top cowling and in the boat for
G
fuel leaks or gasoline fumes.
Check fuel line connections to be sure they
G
are tight.
Check fuel lines for cracks, swelling, or oth-
G
er damage.
EMU37320
Check the fuel filter
Check that the fuel filter is clean and free of
water. If any water is found in the fuel, or if a
significant amount of debris is found, the fuel
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tank should be checked and cleaned by a
Yamaha dealer.
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