Basic requirements
17
EMU25693
Battery requirement
CAUTION:
ECM01061
Do not use a battery that does not meet the
specified capacity. If a battery that does
not meet specifications is used, the elec-
tric system could perform poorly or be
overloaded, causing electric system dam-
age.
For electric start models, choose a battery
which meets the following specifications.
EMU25712
Battery specifications
The engine cannot be started if battery volt-
age is too low.
EMU25730
Without a rectifier or Rectifier Regula-
tor
CAUTION:
ECM01090
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
without a rectifier or Rectifier Regulator, install
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 op-
tional Rectifier Regulator.
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 propellers for ev-
ery Yamaha outboard motor and every appli-
cation.
Your outboard motor came with a Yamaha
propeller chosen to perform well over a range
of applications, but there may be uses where
a different propeller would be more appropri-
ate.
Your Yamaha dealer can help you select the
right propeller for your boating needs. Select
a propeller that will allow the engine to reach
the middle or upper half of the operating
range at full throttle with the maximum boat-
load. Generally, chose a larger pitch propeller
for a smaller operating load and a smaller
pitch propeller for a heavier load. If you carry
loads that vary widely, chose the propeller
that lets the engine run in the proper range for
your maximum load but remember that you
may need to reduce your throttle setting to
stay within the recommended engine speed
range when carrying lighter loads.
Minimum cold cranking amps
(CCA/SAE):
F9.9FER 245.0 A
T9.9GEH 245.0 A
T9.9GPH 245.0 A
T9.9GPR 245.0 A
Minimum marine cranking amps
(MCA/ABYC):
F9.9FER 323.0 A
T9.9GEH 323.0 A
T9.9GPH 323.0 A
T9.9GPR 323.0 A
Minimum reserve capacity (RC/SAE):
F9.9FER 52 minutes
T9.9GEH 52 minutes
T9.9GPH 52 minutes
T9.9GPR 52 minutes
U6AU11E0.book Page 17 Friday, September 7, 2007 10:51 AM
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2019 Yamaha Motor Corporation, U.S.A.
