8.4
Section 8
Electrical System and Components
These modules are designed to be trouble free for
the life of the engine. Other than periodic checking
or replacing of the spark plug, no maintenance is
required. The ignition module automatically controls
the timing of the spark.
Mechanical systems do occasionally fail or break
down, the following troubleshooting information is
provided to help systematically determine the cause
of a reported problem.
Problem Test Conclusion
Engine
Will Not
Start
1. Disconnect the cap from the spark plug and
a ach it to the terminal end of spark tester
Kohler Part No. 25 455 01-S. A ach tester
spring clip to a good ground, not to the
spark plug. Turn ignition/key switch ON
and crank the engine while observing the
fi ring tip of the tester.
1. If tester is fi ring, ignition system is good.
Install a new spark plug and try to start
engine. If it still will not start, check other
possible causes (fuel, compression, etc.). If
tester does not fi re, go to Step 2.
2. On electric start engines, remove the starter
cover panel. Locate the black/white kill lead
coming from the ignition module inside
the blower housing. Disconnect the bullet
connector where the kill lead plugs into the
harness. Repeat the spark test (Step 1).
2. If spark is now present, check for a
shorted lead in the kill circuit or a faulty
switch (Step 7). If there is still no spark, go
to Step 3.
3. Disconnect the bullet connector where the
Oil Sentry
™
control module joins the lead
from the Oil Sentry
™
fl oat switch (yellow
leads). Repeat spark test again.
3. If spark is now present, the control
module or fl oat switch is faulty. Test the
control module (Step 4) and the fl oat switch
(Step 5). If there is still no spark, test the
ignition module (Step 6).
4. Set an ohmmeter to the Rx1 scale and zero
the meter. Connect the black ohmmeter lead
to the yellow Oil Sentry
™
control module
lead and touch the red ohmmeter lead to the
black wire.
4. Continuity should be indicated. Replace
Oil Sentry
™
control module for any other
results.
5. Set an ohmmeter to the Rx1 scale and zero
the meter. Connect one ohmmeter lead to
the Oil Sentry
™
fl oat switch lead (yellow
with green sleeve) and touch the other lead
to a bare spot on the crankcase (ground). See
Figure 8-3. Drain the oil from the crankcase
and repeat the test.
a. If continuity was indicated with
and without oil above, check if the
insulation has been scraped off the fl oat
switch lead.
b. With the fl oat switch removed, connect
one ohmmeter lead to the fl oat switch
lead terminal and connect the other
lead to the mounting bracket. Test
resistance with the switch in the normal
position and inverted. Repeat test 2 or 3
times in each direction.
5. With the oil at the proper level, no
continuity should have been indicated.
A er the oil was drained, continuity
should have been indicated. If test results
are other than specifi ed, remove the
closure plate from the engine and remove
the fl oat switch for further testing (Steps
5a and 5b).
a. If the lead wire is bare, allowing it to
short, repair with electrical tape or
replace fl oat switch.
b. Switch continuity should be as
indicated in Figure 8-4. If not, replace
it.
To Next Page
Loading...
Need help?
General
