Cranking Circuit; Starting Motor; General Description - Suzuki Samurai 1986 Service Manual

9-1. GENERAL DESCRIPTION

Hold in coil
Plunger
Pin
Pinion 84 Over running
clutch
Fig. 9 1 Cranking circuit

CRANKING CIRCUIT

The cranking circuit consists of the battery, starting motor, ignition switch, clutch switch and related
electrical wiring. These components are connected electrically as shown in Fig. 9-l. Only the starting
motor will be covered in this portion.

STARTING MOTOR

The starting motor consists of parts shown in Fig. 9-2 and has field coils mounted in starting motor yoke
(frame).
The magnetic switch assembly and parts in the starting motor are enclosed in the housings so that they
will be protected against possible dirt and water splash.
In the circuit shown in Fig. 9-1, the magnetic (motor) switch coils are magnetized when the ignition
switch is closed. The resulting plunger and pinion drive lever movement causes the pinion to engage the
engine flywheel gear and the magnetic switch main contacts to close, and cranking takes place. When the
engine starts, the pinion overrunning clutch protects the armature from excessive speed until the switch
is opened, at which time the return spring causes the pinion to disengage.
9-2
Magnetic switch
Pull in coil
Magnetic switch contacts
I I
Starting motor
To distributor
n
clutch
. . . ..i+rh