Disconnecting The Battery - Yamaha F9.9 Owner's Manual

Maintenance
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.
2. Disconnect the negative cable(s) from
the negative (-) terminal. NOTICE: Al-
ways disconnect all negative (-) cables
first to avoid a short circuit and dam-
age to the electrical system.
3. Disconnect the positive cable(s) and re-
move the battery from the boat.
4. Clean, maintain, and store the battery
according to the manufacturer's instruc-
tions.
90
[ECM01931]
[ECM01941]