MV Agusta Brutale 800 Owner's Manual page 56

OFF position
All electrical circuits are deactivated. The key can be
removed.
ON position
All electrical circuits are activated. The instruments and
warning lights perform the self-diagnostic cycle. The
engine can be started. The key cannot be removed.
CAUTION
Do not leave the key on the ON position for a
long time when the engine is not running, in
order to avoid damage to the electrical parts
of the motorcycle.
CONTROLS AND INSTRUMENTS
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