Troubleshooting 20 - Husqvarna TC 50 2023 Owner's Manual

Faults
Engine turns but does not start
Engine has no idle speed
Possible cause
Operating error
Motorcycle was out of use for
a long time and there is old
fuel in the float chamber
Fuel supply interrupted
Spark plug sooty or wet
Plug gap of spark plug too
wide
Fault in ignition system
Short-circuit cable in wiring
harness frayed, stop button
faulty
The connector or ignition coil
is loose or oxidized
Water in carburetor or jets
blocked
Idling jet blocked
Adjusting screws on the car-
buretor are in turned to the
wrong position
Spark plug defective
Ignition system defective

TROUBLESHOOTING 20

Action
–
Carry out the start procedure.
( p. 23)
–
Empty the carburetor float cham-
ber.
–
Check the fuel tank breather.
–
Clean the fuel tap.
(TC 50)
–
Check/set the carburetor compo-
nents.
(TC 50 MINI)
–
Check/set the carburetor compo-
nents.
–
Clean and dry the spark plug and
spark plug connector, or change if
necessary.
–
Adjust plug gap.
Guideline
Spark plug electrode gap
0.60 mm (0.0236 in)
–
Check the ignition system.
–
Check the stop button.
–
Clean the plug-in connection and treat
it with contact spray.
(TC 50)
–
Check/set the carburetor compo-
nents.
(TC 50 MINI)
–
Check/set the carburetor compo-
nents.
(TC 50)
–
Check/set the carburetor compo-
nents.
(TC 50 MINI)
–
Check/set the carburetor compo-
nents.
(TC 50)
–
Carburetor - adjust the idle
speed. ( p. 107)
(TC 50 MINI)
– Carburetor – adjust the idle
speed. ( p. 108)
–
Change spark plug.
–
Check the ignition coil.
–
Check the spark plug connector.
127