Toro Greenmaster 1000, Service Manual

Page: 77 / 140

Greensmaster 1000/1600
Page 5 – 11
Electrical System
Igniter
The igniter consists of transistorized circuitry that con-
trols the firing sequence of the spark plug in conjunction
with the ignition coil. Mounted on the engine block, the
igniter casing is grounded directly to the engine. A single
black wire makes a circuit from the igniter to the primary
of the ignition coil.
1. Park mower on a level surface. Make sure engine
is OFF.
2. Remove black wire from the bottom of the igniter.
3. Use a digital multimeter set to the ohms scale; take
internal resistance of the igniter.
A. Contact black (–) test lead to the igniter mount-
ing screw (ground).
B. Contact red (+) test lead to the terminal from
which the black wire was removed.
C. The internal resistance should be about 7.8 to
8.1 K
Ω
.
4. If the internal resistance value is not within specifi-
cation, replace old igniter with a new one. Reconnect
black lead.
A. Try starting the engine.
B. If the engine does not start, replace the ignition
coil.
1. Ground 2. Wire connector
Figure 5
1
1
5. If the internal resistance value is within specifica-
tion, test the ignition coil.
Electrical
System