Starting Circuit Operation - Yamaha XT 600 AC Service Manual

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ELECTRICAL STARTING SYSTEM
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STARTING CIRCUIT OPERATION
The starting circuit on this model consist of the
starter motor, starter relay, and the relay unit
(starting circuit cut-off relay). If the engine stop
switch and the main switch are both closed, the
starter motor can operate only if:
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The transmission is in neutral (the neutral switch
is closed) .
or if
The clutch lever is pulled to the handlebar (the
clutch switch is closed) and the sidestand is up
(the sidestand switch is closed.)
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The starting circuit cut-off relay prevents the
starter from operating when neither of these
conditions has been met. In this instance, the
starting circuit cut-off relay is open so current
cannot reach the starter motor.
When one of both of the above conditions have
been met, however, the starting circuit cut-off
relay is closed, and the engine can be started by
pressing the starter switch.
WHEN THE TRANSMISSION IS IN
NEUTRAL
WHEN THE SIDESTAND IS UP AND
THE CLUTCH LEVER IS PULLED IN
Battery
Main switch
"ENGINE STOP" switch
Starter relay
Starting circuit cut-off relay
"START" switch
Starter motor
Neutral switch
Clutch switch
Sidestand switch
To starting circuit cut-off relay
To starter motor