Checking Fuel System; Changing Engine Oil - Yamaha F250 Owner's Manual

Maintenance
5. When fitting the plug, wipe off any dirt
from the threads, and then screw it in to
the correct torque.
Spark plug torque:
25.0 Nm (18.4 ft-lb) (2.55 kgf-m)
NOTE:
If a torque-wrench is not available when you
are fitting a spark plug, a good estimate of the
correct torque is 1/4 to 1/2 turn past finger-
tight. Have the spark plug adjusted to the cor-
rect torque as soon as possible with a torque-
wrench.
6. Install the spark plug cap and tighten the
bolts.
7. Install the ignition coil cover and tighten
the bolts.
EMU28962

Checking 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.
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If any fuel leakage is found, the fuel sys-
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tem must be repaired by a qualified me-
chanic. Improper repairs can make the
outboard unsafe to operate.
Check the fuel lines for leaks, crack, or mal-
function. If a problem is found, your Yamaha
dealer or other qualified mechanic should re-
pair it immediately.
56
Checkpoints
Fuel system parts leakage
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Fuel line joint leakage
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Fuel line cracks or other damage
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Fuel connector leakage
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EMU29087

Changing engine oil

EWM00760
WARNING
Avoid draining the engine oil immediate-
G
ly after stopping the engine. The oil is
hot and should be handled with care to
avoid burns.
Be sure the outboard motor is securely
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fastened to the transom or a stable
stand.