Yamaha 4TX-AE1, Service Manual

Page: 287 / 332

8-11
ELECTRIC STARTING SYSTEM
ELEC
STARTING CIRCUIT OPERATION
The starting circuit on this model consists of the
starter motor, starter relay, and the starting circuit
cut-off relay. If the “ENGINE STOP” switch and the
main switch are both closed, the starter motor can
operate only if:
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).
The starting circuit cut-off relay prevents the start-
er 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 at least one of the above conditions has
been met however, the starting circuit cut-off relay
is closed, and the engine can be started by press-
ing the starter switch.
WHEN THE TRANSMISSION IS IN
NEUTRAL
WHEN THE SIDESTAND IS UP AND
THE CLUTCH LEVER IS PULLED IN
1 Battery
2
Main fuse
3 Main switch
4
Ignition fuse
5 Engine stop switch
6 Starting circuit cut-off relay
7 Diode
8
Clutch switch
9 Sidestand switch
10
Neutral switch
11
Start switch
12
Starter relay
13
Starter motor