Service Manual
41
GTS 200
Electric Starter
Starter
Check Starter Motor Drive and Clutch
1. When
starter switch is activated, pinion gear should rise,
engage flywheel ring gear
, and crank engine. This should
be observed.
2.
If starter motor drive does not react properly
, inspect helix
and pinion gear for freeness of operation.
3.
Pinion gear must move freely on helix for correct starter
operation. If any sticking occurs, this must be corrected,
Fig. 92.
Note:
Do not oil pinion gear on clutch helix.
1
2
Fig. 92
– Starter Motor Drive
1. Helix 2. Starter
gear
4. Starter
motor clutch is designed to prevent damage from
shock loads such as an engine backfire.
5.
Clutch should not slip during normal engine cranking. This
can be checked by blocking mower blade and engaging
starter motor
.
6.
If clutch assembly slips at this time, it should be replaced.
Wiring Diagrams
The
following wiring diagrams (Fig. 93) show the two systems
used with the GTS 200 engine.
Fig. 93 – T
ypical W
iring Diagrams for
T
oro W
alk Behind Mowers
Check 12 Volt Starter Motor
A
performance test of starter motor may be made in the
following manner
.
CAUTION
GROUND SP
ARK plug wir
e using Briggs &
Stratton T
ool #19051 or #19368, Ignition T
ester,
befor
e doing this test. Do not engage starter motor
mor
e than five seconds.
1.
Set multimeter to read DC amps. Multimeter must be
capable of reading 10 amps DC minimum.
2.
Connect starter motor
, battery and meter as shown in
Fig. 94.
3.
Place tachometer on starter body and activate starter motor
as shown, Fig. 94.
1
2
3
4
Fig. 94 – T
esting Starter Motor with Digital
Multimeter
1. Red
test lead
2.
Black test lead
3.
Briggs & Stratton T
ool
#19200
4.
12 volt battery
Starter Motor Specifications
Voltage .
. . . . . . . . . . . . . . . .
12
Minimum
motor RPM
.
. . .
1400
Maximum
amps
.
. . . . . . . .
9
Troubleshoot Starter Motor
If
starter motor does not perform satisfactorily
, following
should be checked, and corrected if necessary
.
1.
A binding condition between pinion and clutch gear or
misalignment of motor bearings.
2.
Starter motor brushes sticking in brush holders.