Preoperation Checks; Fuel; Oil; Controls - Yamaha 40V Owner's Manual

Operation
cool.
4. Third through tenth hours:
Avoid operating at full throttle for more
than 5 minutes at a time. Let the engine
cool between full-throttle runs. Vary en-
gine speed occasionally.
5. After the first 10 hours:
Operate the engine normally. Use only
straight gasoline in the fuel tank. The
Yamaha oil injection system provides
proper lubrication for normal operation.
EMU27101

Preoperation checks

EWM00080
WARNING
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.
ECM00120
CAUTION:
Do not start the engine out of water. Over-
heating and serious engine damage can
occur.
EMU27110

Fuel

Check to be sure you have plenty of fuel
G
for your trip.
Make sure there are no fuel leaks or gaso-
G
line fumes.
Check fuel line connections to be sure they
G
are tight (if equipped Yamaha fuel tank or
boat tank).
Be sure the fuel tank is positioned on a se-
G
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).
26
EMU27120

Oil

Check to be sure you have plenty of oil for
G
your trip.
EMU27130

Controls

Check throttle, shift, and steering for prop-
G
er operation before starting the engine.
The controls should work smoothly, with-
G
out binding or unusual free play.
Look for loose or damaged connections.
G
Check operation of the starter and stop
G
switches when the outboard motor is in the
water.
EMU27140

Engine

Check the engine and engine mounting.
G
Look for loose or damaged fasteners.
G
Check the propeller for damage.
G
EMU27180
Operation after long period of
storage
Oil injection models
When operating the engine after a long peri-
od (12 months) of storage, proceed as fol-
lows:
1. Use a 50:1 gasoline to oil mixture to start
the engine.
2. Start the engine. Leave it idling.
EWM01330
WARNING
Do not touch or remove electrical parts
G
when starting or during operation.
Keep hands, hair, and clothes away
G
from the flywheel and other rotating
parts while the engine is running.
3. Watch for oil flowing through the oil feed
pipes. After any air in the oil lines has
been expelled, the oil injection system
should supply oil normally. If no oil is
flowing after 10 minutes of idling, consult
your Yamaha dealer.