Kohler XT775 [30/56] Electrical system
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Kohler XT775 [30/56] Electrical system

Kohler XT775 [30/56] Electrical system
30
Electrical System
KohlerEngines.com 14 690 01 Rev. G
Electronic Ignition Systems Tests
Test Ignition System
1. Make sure spark plug lead is connected to spark plug.
2. Check condition of spark plug. Make sure gap is set to 0.76 mm (0.030 in.).
Condition Possible Cause Conclusion
Spark plug is not receiving ignition
pulse.
Spark Plug Check gap and adjust if necessary;
reinstall plug.
Spark plug in bad condition. Spark Plug Replace plug, set gap, and install.
Test for Spark
NOTE: To maintain engine speeds obtained during cranking, do not remove spark plug.
Test for spark with ignition tester.
1. Disconnect spark plug lead and connect to post terminal of tester. Connect clip to ground, not to spark plug.
2. Turn engine ignition switch to START/RUN position to initiate test.
3. Crank engine to minimum of 500 RPM, and observe tester. Visible and audible sparks should be produced.
4. Release switch to RUN position. Visible and audible sparks should be produced.
Condition Possible Cause Conclusion
Visible and audible sparks are
produced.
Ignition Module Ignition module is OK.
Visible and audible sparks are not
produced.
Ignition Module or
Wiring and Connections
Make sure ignition switch, kill switch
or key switch is in RUN position.
Check all safety and operator
presence control switches (for
example: ywheel brake kill switch)
and other components, including
wiring and connections for accidental
grounding.
If components, wiring, including
terminals are all veried OK, test
ignition module.
Test Ignition Module
1. Disconnect kill lead from terminal on ignition module.
2. Pull retractable starter or crank engine to a minimum of 500 RPM and check for spark.
Condition Possible Cause Conclusion
Visible and audible sparks are
produced.
Ignition System or
Wiring and Connections
Problem is elsewhere in system/
wiring.
Visible and audible sparks are not
produced.
Ignition Module Replace ignition module.

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