Husqvarna TC 50, Owner'S Manual

Page: 120 / 137

19 TROUBLESHOOTING
118
Faults Possible cause Action
Engine does not speed up The carburetor is flowing over
because the float needle is
dirty or worn (TC 50)
–
Check/set the carburetor compo-
nents.
(TC 50 Mini)
–
Check/set the carburetor compo-
nents.
Loose carburetor jets (TC 50)
–
Check/set the carburetor compo-
nents.
(TC 50 Mini)
–
Check/set the carburetor compo-
nents.
Fault in ignition system
–
Check the ignition system.
Engine has too little power Fuel supply interrupted
–
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.
Air filter very dirty
–
Clean the air filter and air filter box.
(
p. 65)
Exhaust system leaky,
deformed or too little glass
fiber yarn filling in main
silencer
–
Check exhaust system for damage.
–
Change the glass fiber yarn filling of
the main silencer.
( p. 66)
Ignition system defective
–
Check the ignition coil.
–
Check the spark plug connector.
Diaphragm or reed valve hous-
ing damaged
–
Check the diaphragm and reed valve
housing.
Noticeable wear
–
Overhaul the engine.
Clutch engagement speed too
low or too high
–
Check the clutch setting. ( p. 104)
Engine stalls or is popping into
the carburetor Lack of fuel
–
Turn the knurled screw on the fuel tap
all the way counterclockwise.
–
Refuel. ( p. 26)
Engine takes in bad air
–
Check the intake flange and carbure-
tor for tightness.
The connector or ignition coil
is loose or oxidized
–
Clean the plug-in connection and treat
it with contact spray.
Engine overheats Too little coolant in cooling
system
–
Check the cooling system for leakage.
–
Check the coolant level. ( p. 97)
Too little air stream
–
Switch off engine when standing.
Radiator fins very dirty
–
Clean radiator fins.
Foam formation in cooling sys-
tem
–
Drain the coolant. ( p. 98)
–
Refill with coolant. ( p. 98)