Husqvarna F2101U0, Owner'S Manual

Page: 119 / 137

TROUBLESHOOTING 19
117
Faults Possible cause Action
Engine has too little power Diaphragm or reed valve hous-
ing damaged
–
Check the diaphragm and reed valve
housing.
Engine stalls or is popping into
the carburetor Lack of fuel
–
Turn the tap handle of the fuel tap to
the
ON position.
–
Refuel. ( p. 31)
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 connector 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 stationary.
Radiator fins very dirty
–
Clean the radiator fins.
Foam formation in cooling sys-
tem
–
Drain the coolant. ( p. 98)
–
Refill with coolant. ( p. 98)
Damaged cylinder head or
cylinder head gasket
–
Check the cylinder head and cylinder
head gasket.
Bent radiator hose
–
Change the radiator hose.
White smoke emission (steam
in exhaust gas) Damaged cylinder head or
cylinder head gasket
–
Check the cylinder head and cylinder
head gasket.
Gear oil exits at the vent hose Too much gear oil added
–
Check the gear oil level. ( p. 109)
Water in the gear oil Damaged radial shaft seal ring
or water pump
–
Check the radial shaft seal ring and
the water pump.