Kohler Courage SV710-740 Service Manual page 68

3. Repeat the spark test on the opposite cylinder if
cylinders are being tested individually.
a. If both cylinders have good spark but the
engine runs poorly, install new spark plugs
gapped at 0.76 mm (0.030 in.), and retest
engine performance. If problem persists, go to
Test 3.
b. If one cylinder had good spark but the other
cylinder had no spark, or intermittent spark,
go to Test 3.
c. If there was no spark or intermittent spark
on both cylinders, go to Test 4.
1. Make a line near the edge of the flywheel screen
with a marking pen or narrow tape. See Figure
7-11.
2. Connect an automotive timing light to cylinder that
had good spark.
3. Run the engine at idle and use the timing light
beam to locate the line on the screen. Draw a line
on the blower housing adjacent to the line on the
screen. See Figure 7-12. Accelerate to full throttle
and watch for movement of the line on the screen
relative to the line on the blower housing. If both
cylinders had good spark, repeat the test on the
other cylinder.
a. If the line on the screen moved away from the
line on the blower housing during acceleration,
the DSAM is working properly. If it didn't
move away, go to Test 5.
b. If you were able to check timing on both
cylinders, the lines you made on the blower
housing should be 90° apart. If they're not, go
to Test 4.
1. Remove the blower housing from the engine.
Inspect the wiring for any damage, cuts, bad
crimps, loose terminals, or broken wires.
2. Disconnect the leads from the ignition module(s)
and clean all of the terminals (male and female)
with aerosol electrical contact cleaner to remove
any old dielectric compound, dark residue, dirt,
or contamination. Disconnect the spark plug
leads from the spark plugs.
3. Remove one of the mounting screws from each
of the ignition modules. Look in the mounting
hole with a flashlight and use a small round
wire brush to remove any loose rust from the
laminations inside the mounting hole.
4. Refer to the following table and use a digital
ohmmeter to check the resistance values of the
ignition modules and compare them to the table.
When testing resistance to the laminations,
touch the probe to the laminations inside the
screw hole, as some laminations have a rust
preventative coating on the surface which could
alter the resistance reading.
a. If all of the resistance values are within the
ranges specified in the table, go to Step 5.
b. If any of the resistance values are not within
the ranges specified in the table,
is faulty and must be replaced.
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that module