Connecting The Battery - Yamaha F250 Owner's Manual

Maintenance
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, remove
the battery from the boat and store it in a
cool, dark place. Completely recharge
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 recharge
the battery when it is low.
NOTE:
Consult a Yamaha dealer when charging or
re-charging batteries.
EMU30730

Connecting the battery

EWM00570
WARNING
Mount the battery holder securely in a dry,
well-ventilated, vibration-free location in
the boat. Install a fully charged battery in
the holder.
ECM01500
CAUTION:
Make sure the main switch (on applica-
G
ble models) is "
on the battery.
Reversal of the battery cables will dam-
G
age the electrical parts.
If you connect the battery cables in the
G
reverse order, consult a Yamaha dealer
immediately.
Connect the red battery cable first when
G
installing the battery and disconnect the
black battery cable first when removing
it. Otherwise, the electrical parts can will
be damaged.
66
" (off) before working
The electrical contacts of the battery
G
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.
1. Red cable
2. Black cable
3. Battery
Connecting an accessory battery (optional)
1. Remove the accessory battery coupler
cover from the outboard motor.
2. Connect the accessory battery coupler to
the coupler of the accessory battery ca-
ble (optional). Use a connecting cable be-
tween the (-) terminals of the starting
battery and accessory battery. See the il-
lustrations of the wiring connections. This
cable must be made from wire thicker
than the starting battery cable.
EWM00600
WARNING
Use of smaller wire could lead to a fire.