Husqvarna TX 125 Owner's Manual page 138

21 TROUBLESHOOTING
Faults
Engine does not speed up
Engine has too little power
Engine stalls or is popping into
the carburetor
Engine overheats
White smoke emission (steam
in exhaust gas)
Gear oil exits at the vent hose
Water in the gear oil
136
Possible cause
Loose carburetor jets
Fault in ignition system
Fuel feed interrupted
Air filter very dirty
Exhaust system leaky,
deformed or too little glass
fiber yarn filling in main
silencer
Fault in ignition system
Diaphragm or reed valve hous-
ing damaged
Lack of fuel
Engine takes in bad air
The connector or ignition coil
is loose or oxydized
Too little coolant in cooling
system
Too little air stream
Radiator fins very dirty
Foam formation in cooling sys-
tem
Damaged cylinder head or
cylinder head gasket
Bent radiator hose
Damaged cylinder head or
cylinder head gasket
Too much gear oil added
Damaged shaft seal ring or
water pump
Action
–
Check/set the carburetor compo-
nents.
–
Check the ignition system.
–
Check the fuel tank breather.
–
Clean the fuel tap.
–
Check/set the carburetor compo-
nents.
–
Clean the air filter and air filter box.
( p. 68)
–
Check exhaust system for damage.
–
Change glass fiber yarn filling in the
main silencer. ( p. 70)
–
Check the ignition system.
–
Check the diaphragm and reed valve
housing.
–
1
Turn handle of the fuel
tap to the ON position.
(Figure H02505-10 p. 20)
–
1
Turn handle of the fuel
tap to the RES position.
(Figure H02505-10 p. 20)
–
Refuel. ( p. 39)
–
Check the intake flange and carbure-
tor for tightness.
–
Clean the connector and treat with
contact spray.
–
Check the cooling system for leakage.
–
Check the coolant level. (
–
Switch off engine when stationary.
–
Clean the radiator fins.
–
Drain the coolant. ( p. 113)
–
Refill with coolant. (
–
Check the cylinder head and cylinder
head gasket.
–
Change the radiator hose.
–
Check the cylinder head and cylinder
head gasket.
–
Check the gear oil level. (
–
Check the shaft seal ring and water
pump.
p. 113)
p. 114)
p. 128)