Operation
34
2. Next 50 minutes:
Do not exceed half throttle (approxi-
mately 3000 r/min). Vary engine speed
occasionally. If you have an easy-plan-
ing boat, accelerate at full throttle onto
plane, then immediately reduce the
throttle to 3000 r/min or less.
3. Next two hours:
Accelerate at full throttle onto plane,
then reduce engine speed to three-quar-
ter throttle (approximately 4000 r/min).
Vary engine speed occasionally. Run at
full throttle for one minute, then allow
about 10 minutes of operation at three-
quarter throttle or less to let the engine
cool.
4. Remaining seven hours:
Run the engine at any speed. However,
avoid operating at full throttle for more
than 5 minutes at a time.
5. After the first 10 hours:
Operate the engine normally.
EMU27103
Preoperation checks
WARNING
EWM00080
If any item in the preoperation check is
not working properly, have it inspected
and repaired before operating the out-
board motor. Otherwise an accident
could occur.
CAUTION:
ECM00120
Do not start the engine out of water. Over-
heating and serious engine damage can
occur.
EMU31550
Fuel
●
Check to be sure you have plenty of fuel
for your trip.
●
Make sure there are no fuel leaks or gaso-
line fumes.
●
Check fuel line connections to be sure they
are tight (if equipped Yamaha fuel tank or
boat tank).
●
Be sure the fuel tank is positioned on a se-
cure, flat surface, and that the fuel line is
not twisted or flattened, or likely to contact
sharp objects (if equipped Yamaha fuel
tank or boat tank).
●
Check the water in the fuel filter with the
water separator warning device. Place the
gear shift lever in neutral and turn the main
switch to “”(on). If the buzzer sounds
and the water separator warning indicator
blinks, consult your Yamaha dealer imme-
diately.
EMU27120
Oil
●
Check to be sure you have plenty of oil for
your trip.
EMU27130
Controls
●
Check throttle, shift, and steering for prop-
er operation before starting the engine.
●
The controls should work smoothly, with-
out binding or unusual free play.
●
Look for loose or damaged connections.
●
Check operation of the starter and stop
switches when the outboard motor is in the
water.
EMU27150
Engine
●
Check the engine and engine mounting.
●
Look for loose or damaged fasteners.
●
Check the propeller for damage.
●
Check that the battery is in good condition
and the battery connections are secure.
EMU27221
Operation after a long period of
storage
When operating the engine after a long peri-
od (12 months) of storage, proceed as fol-