Maintenance
89
ies for different batteries. This procedure
contains typical checks that apply to many
batteries, but you should always refer to the
battery manufacturer’s instructions.
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]
EMU29335
Connecting the battery
EWM00573
Mount the battery holder securely in a
dry, well-ventilated, vibration-free loca-
tion in the boat. Install a fully charged bat-
tery in the holder.
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 con-
nect the black battery cable to the NEG-
ATIVE (-) 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.
EMU29372
Disconnecting the battery
(1) Turn off the battery cut-off switch (if
equipped) and main switch.
NOTICE:
If
they are left on, the electrical system
can be damaged.
[ECM01931]
(2) Disconnect the negative cable(s) from
the negative (-) terminal.
NOTICE:
Al-
ways disconnect all negative (-) ca-
bles first to avoid a short circuit and
1. Red cable
2. Black cable
3. Battery
1
2
3
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