Maintenance
83
The procedure for checking the battery varies
for different batteries. This procedure con-
tains typical checks that apply to many bat-
teries, but you should always refer to the
battery manufacturer’s instructions.
NOTICE
ECM01921
A poorly maintained battery will quickly
deteriorate.
1.
Check the electrolyte level.
2.
Check the battery’s charge. If your boat
is equipped with the digital speedome-
ter, the voltmeter and low battery alert
functions will help you monitor the bat-
tery’s charge. If the battery needs charg-
ing, consult your Yamaha dealer.
3.
Check the battery connections. They
should be clean, secure, and covered by
an insulating cover.
WARNING! Bad
connections can produce shorting or
arcing and cause an explosion.
[EWM01913]
EMU35606
Connecting the battery
WARNING
EWM00573
Mount the battery holder securely in a dry,
well-ventilated, vibration-free location in
the boat. Install a fully charged battery in
the holder.
NOTICE
ECM01125
Do not reverse the battery cables. Other-
wise, the electrical parts could be dam-
aged.
1.
Make sure the main switch (on applica-
ble models) is “
” (off) before working
on the battery.
2.
Connect the red battery cable to the
POSITIVE (+) terminal first. Then connect
the black battery cable to the NEGATIVE
(-) terminal.
3.
The electrical contacts of the battery and
cables must be clean and properly con-
nected, or the battery will not start the
engine.
Connecting an accessory battery (optional)
If connecting an accessory battery, consult
your Yamaha dealer about correct wiring. It is
recommendable to install the fuse to the iso-
lator lead as shown in the illustration. For the
fuse size, be sure to follow local regulations.
For example, for USA, the ABYC rules (E-11)
should be observed.
1. Red cable
2. Black cable
3. Battery
ZMU01811
1
2
3
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