KTM 2009 690 Rally Factory Replica, Owner'S Manual

Page: 75 / 104

TROUBLESHOOTING
73
Faults Possible cause Action
Engine stalls or is popping into the
carburetor. Lack of fuel
–
Refuel. ( p. 25)
Engine takes in bad air
–
Check rubber sleeves and carburetor for tight-
ness.
Engine overheats. Too little coolant in cooling system
–
Check the cooling system for leakage.
–
Check the coolant level. ( p. 63)
Too little air stream
–
Switch off engine when standing.
Radiator fins very dirty
–
Clean radiator fins.
Bent radiator hose
–
Change the radiator hose. x
Thermostat defective
–
Check the thermostat. x
Guideline
Opening temperature: 70 °C (158 °F)
Defect in radiator fan system
–
Check the radiator fan fuse.
–
Check the radiator fan.
x
–
Check the thermostat.
x
Engine has too little power Fuel feed interrupted
–
Check the fuel tank breathers.
–
Check the fuel filter.
–
Check the fuel sieve of the fuel tanks.
–
Clean the fuel tap.
–
Check/adjust the carburetor components. x
–
Check the fuel pump.
x
Air filter very dirty
–
Clean the air filter.
x
Exhaust system leaky, deformed or
too little glass fiber yarn filling in
main silencer.
–
Check exhaust system for damage.
–
Change the glass fiber yarn filling of the main
silencer.
x
Valve clearance too little
–
Adjust the valve clearance.
x
Ignition system defective
–
Check the ignition coil.
x
–
Check the CDI unit. x
–
Check the spark plug connector.
x
–
Check the pulse generator. x
–
Check the generator.
x
High oil consumption Engine vent hose bent
–
Route the vent hose without bends or replace it
if necessary.
Engine oil level too high
–
Check the engine oil level. ( p. 67)
Engine oil too thin (low viscosity)
–
Change the engine oil and filter, clean the oil
screens.
x
( p. 67)
Piston or cylinder is worn
–
Check the piston/cylinder mounting
clearance.
x