TROUBLESHOOTING 21
143
Faults
Possible cause
Action
The engine cannot be cranked
(starter motor)
Operating error
–
Carry out start procedure. (
12-V battery discharged
–
Charge the 12-V battery.
–
Check charging voltage.
–
Check the open-circuit current.
–
Check the stator winding of the alter-
nator.
Main fuse blown
–
Change the main fuse. (
Starter relay faulty
–
Check the starter relay.
Starter motor faulty
–
Check the starter motor.
The engine turns but does not
start
Operating error
–
Carry out start procedure. (
Quick release coupling not
joined
–
Join quick release coupling.
Idle speed is not set correctly
–
Adjust the idle speed.
Fuel supply interrupted
–
Check the fuel tank breather.
Spark plug oily or wet
–
Clean and dry the spark plug, or
change it if necessary.
Plug gap of spark plug too
wide
–
Adjust plug gap.
Guideline
Spark plug electrode gap
1.20 mm (0.0472 in)
Faulty ignition
–
Ignition coil - check the primary wind-
ing.
–
Check the spark plug connector.
–
Check the stator winding of the alter-
nator.
Short-circuit cable in wiring
harness frayed, switch-off but-
ton or emergency OFF switch
faulty
–
Check wiring harness (visual check).
–
Check the electrical system.
The connector or ignition coil
is loose or oxydized
–
Clean the connector and treat with
contact spray.
Malfunction in the electronic
fuel injection
–
Read out the fault memory using the
Husqvarna Motorcycles diagnostics
tool.
The engine has no idle speed
Spark plug defective
–
Change the spark plug.
Faulty ignition
–
Ignition coil - check the primary wind-
ing.
–
Check the spark plug connector.
–
Check the stator winding of the alter-
nator.
Idle speed is not set correctly
–
Adjust the idle speed.
Engine does not speed up
Malfunction in the electronic
fuel injection
–
Read out the fault memory using the
Husqvarna Motorcycles diagnostics
tool.
Summary of Contents for F2103U9
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