12. Electrical System
188
(2) Structure
When the starting switch is turned on, a magnet switch takes a voltage, and a pinion projects. The pinion
engages with the ring gear of a engine, and the engine is started.
12.3.4 Wiring diameter of a starting motor
1) When a starting switch is turned on, a magnet
switch is charged, and a moving core is absorbed,
and a pinion clutch is moved forward through a
lever, and the pinion engages with a ring gear.
2) When the pinion engages the ring gear, because
a main contact point is closed and the main
electric current flows and a pull coil is short-
circuited by the main contact point and it stops
being charged with electricity, the pinion is kept at
the position by a holding coil during the start.
3) When the starting switch is turned off, the main
contact point becomes open, and the pinion clutch
is returned to the stop position by a return spring.
Armature
Yoke
Brush
Rear Cover
Pinion Shaft
Center Bracket (A)
Center Bracket (P)
Internal Gear
Planet Gear
Pinion
Gear Case
Shift Lever
Torsion Spring
Magnetic Switch
Starting switch
Magnetic switch
Battery
B
M
S
Starting motor
Mag
Mag
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