Battery Requirements; Battery Specifications; Propeller Selection - Yamaha F90 Owner's Manual

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.
EMU25695

Battery requirements

EMU44723

Battery specifications

Standard lead-acid, AGM, gel-cell, and main-
tenance-free batteries are permitted. Use a
fully charged battery that meets the following
specifications. The battery is an important
component necessary to obtain sure engine
starting and to maintain engine performance.
The engine may not start if the battery voltage
is too low.
For North America
It is necessary to meet only two of the three
specifications (CCA, MCA, and RC) in one of
the following combinations:
CCA/SAE and RC
MCA/ABYC and RC
Battery rating (CCA/SAE):
380–1150 A
Battery rating (MCA/ABYC):
502–1370 A
Battery rating (RC/SAE):
124 minutes
For Oceania
It is necessary to meet the following specifi-
cations.
Battery rating (CCA/EN):
430–1080 A
Battery rating (20HR/IEC):
70 Ah
ECM01063
NOTICE
Do not use a battery that does not meet
the specified capacity. If a battery that
does not meet specifications is used,
Specifications and requirements
the electric system could perform poor-
ly or be overloaded, causing electric
system damage.
Do not use a battery which exceeds the
maximum CCA rating. If the batteries
are used in parallel circuit, use new bat-
teries of the same type and make sure
that the total battery rating never ex-
ceed the maximum CCA rating.
EMU36293
Mounting battery
Mount the battery holder securely in a dry,
well-ventilated, vibration-free location in the
boat. WARNING! Do not put flammable
items, or loose heavy or metal objects in
the same compartment as the battery.
Fire, explosion or sparks could result.
[EWM01821]
Battery cable
The battery cable size and length are critical.
Consult your Yamaha dealer about the bat-
tery cable size and length.
EMU41603
Next to selecting an outboard motor, select-
ing the right propeller is one of the most im-
portant purchasing decisions a boater can
make. The type, size, and design of your pro-
peller have a direct impact on acceleration,
top speed, fuel economy, and even engine
life. Yamaha designs and manufactures pro-
pellers for every Yamaha outboard motor and
every application.
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, select a larger pitch propeller
for a smaller operating load and a smaller
pitch propeller for a heavier load. If you carry

Propeller selection

17