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Basic requirements
EMU33552
Installation requirements
EMU33560
Boat horsepower rating
Before installing the outboard motor(s), con-
firm that the total horsepower of your mo-
tor(s) does not exceed the boats maximum
horsepower rating. See the boats capacity
plate or contact the manufacturer.
EWM01560
WARNING
Overpowering a boat can cause severe
instability.
EMU33570
Mounting motor
Your dealer or other person experienced in
proper rigging should mount the motor using
correct equipment and complete rigging in-
structions. For further information, see page
41.
EWM01570
WARNING
Improper mounting of the outboard mo-
G
tor could result in hazardous condi-
tions such as poor handling, loss of
control, or fire hazards.
Because the motor is very heavy, spe-
G
cial equipment and training is required
to mount it safely.
EMU33580
Remote control requirements
The remote control unit must be equipped
with a start-in-gear protection device(s). This
device prevents the engine from starting un-
less it is in neutral.
EWM01580
WARNING
If the engine starts in gear, the boat can
G
move suddenly and unexpectedly, pos-
sibly causing a collision or throwing
14
passengers overboard.
If the engine ever starts in gear, the
G
start-in-gear protection device is not
working correctly and you should dis-
continue using the outboard. Contact
your Yamaha dealer.
EMU25702
Battery requirement
ECM01061
CAUTION:
Do not use a battery that does not meet
the specified capacity. If a battery that
does not meet specifications is used, the
electric system could perform poorly or
be overloaded, causing electric system
damage.
For electric start models, choose a battery
which meets the following specifications.
EMU25712
Battery specifications
Minimum cold cranking amps (CCA/
SAE):
512.0 A
Minimum marine cranking amps (MCA/
ABYC):
675.0 A
Minimum reserve capacity (RC/SAE):
182 minutes
The engine cannot be started if battery volt-
age is too low.
EMU34190
Propeller selection
Next to selecting an outboard, choosing the
right propeller is one of the most important
purchasing decisions a boater can make.
The type, size, and design of your propeller
have a direct impact on acceleration, top
speed, fuel economy, and even engine life.
Yamaha designs and manufactures propel-
lers for every Yamaha outboard motor and
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