Ignition System Operation
Making a System Tester
This simple tester can be made if a commercial spark
tester is not available. It can determine if the ignition sys-
tem is operating properly.
SPRING CLIP
1.
2.
This gives the spark plug a larger gap, which simulates
the spark required under actual engine conditions.
Use a new NGK BPR5ES or equivalent spark plug.
Remove the ground electrode from the test plug.
SPARK
PLUG
3.
Use 18 gauge insulated wire, an alligator clip, and
large spring clip to make a lead assembly.
4.
Slide a 1–1/4 inch length of 1/2–inch I.D. clear fuel
18
GUAGE
WIRE
line over the threads of the spark plug. The spark will be
more visible, and the fuel line will shade the plug firing
tip.
ALLIGATOR
CLIP
Figure 4
Testing the Ignition System
4.
Start the engine and observe the test spark plug.
Visible and audible sparks should be produced.
WARNING
5. If visible and audible sparks are produced, the igni-
tion system is operating properly.
The ignition system produces a danger-
ously high voltage. Do not touch the
spark plug, ignition coil, or spark plug
lead while the engine is running; you can
receive a severe electrical shock.
6.
ignition system is not operating properly.
If visible and audible sparks are not produced, the
A. Check wires and connectors of the ON/OFF
switch, igniter, ignition coil, and combination igniter
and ignition coil (on later models) for grounding or
damaged insulation.
Note:
Do not remove spark plug from the engine. The
spark plug is necessary to maintain normal starting
speeds.
B. If wires and connectors are good, test the igniter,
ignitioncoil,andcombinationigniterandignitioncoil
(on later models) individually.
1.
Remove high–tension lead from the spark plug, and
connect it to the test spark plug.
C. Iftheigniter,ignitioncoil,andcombinationigniter
and ignition coil (on later models) test properly see
Interlock Module and Clutch (Interlock) Switch in
this section for further testing.
2.
the test spark plug. Connect alligator clip to a good
ground on the engine block.
Connect large spring clip around the hex portion of
3.
Make sure ON/OFF switch is in the ON position.
Electrical System
Greensmaster 1000/1600
Page 5 – 10
| Categories | Lawn Mower Manual, Sprinkler and Irrigation Manuals, Toro Sprinkler and Irrigation Manuals |
|---|---|
| Tags | Toro Greensmaster 1000, Toro Greensmaster 1600, Toro Greensmaster 96889SL |
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|
| Document Type | Catalog |
| Language | English |
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| Wikipedia's Page | Toro Company |
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