Service and Repairs

33
Governor System
17 690 01 Rev. L KohlerEngines.com
Electronic Governor Troubleshooting Flow Chart
Inspect wiring harness for any broken or bad connections.
Continued on
next page.
YES
NO
Move throttle shaft to idle position to check for smooth
and consistent travel.
Repair/Replace as necessary.
Is there smooth and consistent travel?
YES
NO
Replace stepper motor and
retest. See page 39 for
disassembly and reassembly
instructions.
Rotate carburetor throttle shaft to check for smooth and
consistent travel.
Does it catch or bind?
YES
NO
Replace carburetor
assembly and retest.
OK?
YES
END
Test control system
of equipment.
Refer to Equipment
Manufacturer’s
diagnostic
procedures for
control system.
Manually
attempt to
rotate stepper
motor in both
directions.
Does it catch or bind?
YES
NO
Engine shuts down immediately after startup OR
Erratic engine speed under normal operation or when load is applied or released.
Remove stepper motor. See page 39 for
disassembly and reassembly instructions.
NO
OK?
YES
NO
END
Test control system
of equipment.
Refer to Equipment
Manufacturer’s
diagnostic procedures
for control system.
YES
NO
Replace carburetor
assembly and retest.
OK?
END
Test control system
of equipment.
Refer to Equipment
Manufacturer’s diagnostic
procedures for control
system.