KTM 625 LC4 SUPERCOMPETITION Owner's Handbook Manual page 34

TROUBLE
Engine does not rev high
Engine will not reach full
power
Engine stops or splutters in
carburetor
Engine gets too hot
High oil consumption
All switched on lamps blown
out
CAUSE
Loose carburetor jets
Electronical ignition timing faulty
Fuel supply partically interrupted or
carburetor dirty
float is not tight
Air filter very dirty
Exhaust system is not tight, defor-
med, 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
Insuffient fuel
Engine takes air out of control
Insufficient cooling liquid
Not enough air stream
Radiators very dirty
Foam formation in cooling system
Bent cooling hose
Thermostat defective
Buckling gearing ventilation hose
Engine oil level too high
Motor oil too thin (viscosity)
Capacitor or voltage regulator
faulty
REMEDY
Tighten jets
Have ignition system checked
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
Clean and check fuel system and carburetor
Check intake flange and carburetor if firmly setted
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
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"
Remove right side cover and control connections. Have
capacitor and voltage regulator checked
33