Yamaha 40V Manuel D'utilisation page 194

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8 Make sure the main switch (on applica-
ble models) is "OFF" before working on
the battery.
8 Reversal of the battery leads will dam-
age the rectifier.
8 Connect the RED lead first when
installing the battery and disconnect
the RED lead last when removing it.
Otherwise, the electrical system can be
damaged.
8 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 lead to the POSITIVE (+)
terminal first.
Then connect the BLACK lead to the NEG-
ATIVE (–) terminal.
1 Red lead
2 Black lead
3 Battery
q
EMU01280
Disconnecting the Battery
w
Disconnect the BLACK lead from the NEG-
ATIVE (–) terminal first. Then disconnect
the RED lead from the POSITIVE (+) termi-
901012
nal.
EML40010
CHECKING BOLTS AND NUTS
1) Check that bolts securing the cylinder
head and engine and the nut securing
the flywheel are tightened with their
specified tightening torques.
2) Check the tightening torques of other
bolts and nuts.
4-29
GB