Maintenance
59
deteriorate.
●
Ordinary tap water contains minerals
harmful to a battery, and should not be
used for topping up.
1. Check the electrolyte level at least once
a month. Fill to the manufacturer’s rec-
ommended level when necessary. Top
up only with distilled water (or pure de-
ionized water suitable to use in batter-
ies).
2. Always keep the battery in a good state
of charge. Installing a voltmeter will help
you monitor your battery. If you will not
use the boat for a month or more, re-
move the battery from the boat and store
it in a cool, dark place. Completely re-
charge the battery before using it.
3. If the battery will be stored for longer
than a month, check the specific gravity
of the fluid at least once a month and re-
charge the battery when it is low.
NOTE:
Consult a Yamaha dealer when charging or
re-charging batteries.
EMU29331
Connecting the battery
WARNING
EWM00570
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.
CAUTION:
ECM01121
●
Make sure the main switch (on applica-
ble models) is “” (off) before work-
ing on the battery.
●
Reversal of the battery cables will dam-
age the electrical parts.
●
Connect the red battery cable first
when installing the battery and discon-
nect the black battery cable first when
removing it. Otherwise, the electrical
parts can be damaged.
●
The electrical contacts of the battery
and cables must be clean and properly
connected, or the battery will not start
the engine.
Connect the red battery cable to the POSI-
TIVE (+) terminal first. Then connect the
black battery cable to the NEGATIVE (-) ter-
minal.
EMU29370
Disconnecting the battery
Disconnect the BLACK cable from the NEG-
ATIVE (-) terminal first. Then disconnect the
RED cable from the POSITIVE (+) terminal.
1. Red cable
2. Black cable
3. Battery
©2019 Yamaha Motor Corporation, U.S.A.
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