Battery Specifications; Without A Rectifier Or Rectifier Regulator; Propeller Selection - Yamaha F9.92D Owner's Manual

electric system could perform poorly or
be overloaded, causing electric system
damage.
For electric start models, choose a battery
which meets the following specifications.
EMU25711

Battery specifications

Minimum cold cranking amps (CCA/
SAE):
F15EH 245.0 A
F15PH 245.0 A
F15PR 245.0 A
F9.9ER 245.0 A
T9.9EH 245.0 A
T9.9ER 245.0 A
Minimum marine cranking amps (MCA/
ABYC):
F15EH 323.0 A
F15PH 323.0 A
F15PR 323.0 A
F9.9ER 323.0 A
T9.9EH 323.0 A
T9.9ER 323.0 A
Minimum reserve capacity (RC/SAE):
F15EH 52 minutes
F15PH 52 minutes
F15PR 52 minutes
F9.9ER 52 minutes
T9.9EH 52 minutes
T9.9ER 52 minutes
EMU25730
Without a rectifier or Rectifier
Regulator
ECM01090
CAUTION:
A battery cannot be connected to models
that do not have a rectifier or Rectifier
Regulator.
If you wish to use a battery with the models
General information
without a rectifier or Rectifier Regulator, in-
stall an optional Rectifier Regulator.
Using a maintenance-free battery with the
above models can shorten the life of the bat-
tery significantly.
Install an optional Rectifier Regulator or use
accessories rated to withstand 18 volts or
higher with the above models. Consult your
Yamaha dealer for details on installing an
optional Rectifier Regulator.
EMU25742

Propeller selection

The performance of your outboard motor will
be critically affected by your choice of propel-
ler, as an incorrect choice could adversely
affect performance and could also seriously
damage the motor. Engine speed depends
on the propeller size and boat load. If engine
speed is too high or too low for good engine
performance, this will have an adverse effect
on the engine.
Yamaha outboard motors are fitted with pro-
pellers chosen to perform well over a range
of applications, but there may be uses where
a propeller with a different pitch would be
more appropriate. For a greater operating
load, a smaller-pitch propeller is more suit-
able as it enables the correct engine speed
to be maintained. Conversely, a larger-pitch
propeller is more suitable for a smaller oper-
ating load.
Yamaha dealers stock a range of propellers,
and can advise you and install a propeller on
your outboard that is best suited to your ap-
plication.
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