HUSABERG FE 450 Repair Manual page 97

ERROR
Engine won't rev up
Engine does
enough power
Engine stops or backfires in
the carburetor
Engine gets too hot
H
2
High oil consumption
All of the switched on lights
are burned out
Horn, turn signal
starter do not work
Battery is dead
TROUBLESHOOTING
CAUSE
Carburetor overflows because
the float needle is soiled or
worn
Loose carburetor jets
Electronic ignition advance is
defective
not have Fuel supply is interrupted or
the carburetor soiled
Air filter is heavily soiled
Exhaust system is not tight,
deformed or there is not
enough glass-fiber yarn in the
silencer
Valve clearance is too small
Compression loss due since
hand decompression lever is
inadequately adjusted
Electronic ignition advance is
defective
Shortage of fuel
Engine drawns in unmetered air
Not enough cooling liquid in
the cooling system
Not enough air stream
Cooling system not ventilated
Radiator fins are heavily soiled
Foam has formed
cooling system
Bent radiator hose
Bent engine ventilation hose
Engine oil level is too high
Engine oil is too thin
The voltage
defective
and Fuse in the starter relay is
blown
Battery is not being charged
by the generator
REMEDY
Disassemble the carburetor and check for wear
Tighten the jets
Check the ignition system
Clean and check the fuel system and carburetor
Clean or replace the air filter
Check the exhaust system for damage, replace the
glass fiber yarn in the main silencer
Adjust the valve clearance
Adjust the hand decompression cable
Check the ignition system
Clean and check the fuel system and carburetor
Check the rubber sleeve and carburetor for a tight fit
Add cooling liquid (see maintenance work), check
the cooling system for tightness
Continue driving speedily
Ventilate the cooling system
Clean the radiator fins with a water jet
in the Replace the
antifreeze
Shorten or replace the radiator hose
Install the ventilation hose without kinks or replace
Check the engine oil level and correct if necessary
Use a thicker engine oil, see "Engine oil" chapter
(viscosity)
Check the voltage regulator
regulator is
Renew the fuse
Check the connections on the voltage regulator
cooling liquid, use brand-name