ENGLISH
44
TROUBLE SHOOTING
»
TROUBLE
CAUSE
REMEDY
Engine does not rev high
Loose carburetor jets
Electronical ignition timing
faulty
Tighten jets
Have ignition system checked
Engine will not reach full
power
Fuel supply partically interrupted
or carburetor dirty
float is not tight
Air filter very dirty
Exhaust system is not tight,
deformed, or the silencer contains
not enough glass fiber yarn
Valve gap to small
Loss of compression because
hand decompressor has no play
Electronical ignition timing faulty
Clean and check fuel system as well as carburetor
replace the float
Clean or replace air filter
Check if exhaust is damaged, replace glas fibre yarn in
exhaust silencer
Adjust valve gap
Check setting of the hand decompression cable
Have ignition system checked
Engine stops or splutters in
carburetor
Insuffient fuel
Engine takes air out of control
Clean and check fuel system and carburetor
Check intake flange and carburetor if firmly setted
Engine gets too hot
Insufficient cooling liquid
Not enough air stream
Radiators very dirty
Foam formation in cooling system
Bent cooling hose
Thermostat defective
Defect thermoswitch
Fan defective
Refill cooling liquid (see maintenance work), check cooling
system for leaks
Drive on briskly
Clean radiators with water jet
Replace cooling liquid, use anti freeze liquid with brand name
Shorten or replace cooling hose
Dismount and check thermostat (opening temperature 70°C,
(158°F) or replace it
Contact a KTM dealer
Check if fan operates properly. To do this, start the engine,
then bypass the connections to the thermoswitch (bottom
right radiator), contact a KTM dealer
High oil consumption
Buckling gearing ventilation hose
Engine oil level too high
Motor oil too thin (viscosity)
Dislocate i.e. replace non-buckling ventilation hose
Check engine oil level when the engine is warm; correct if
necessary
Use thicker engine oil; see chapter „Engine oil“
All switched on lamps blown
out
Capacitor or voltage regulator
faulty
Remove right side cover and control connections. Have
capacitor and voltage regulator checked
Data in the electronic
speedometer is no longer
stored
Battery is dead
Replace battery
