KTM 450 XC-W SIX DAYS USA 2010, Руководство пользователя, Страница: 89 / 118

TROUBLESHOOTING
87
Faults Possible cause Action
Engine has a lack of power Air filter severly contaminated
–
Clean the air filter.
x
( p. 75)
Exhaust system leaky, deformed or
too little glass fiber yarn filling in
main silencer
–
Check exhaust system for damage.
–
Change glass fiber yarn filling of main
silencer.
x
Valve clearance too little
–
Adjust the valve clearance.
x
Ignition system defective
–
Check the ignition coil. x
–
Check the CDI controller.
x
–
Check the spark plug connector.
x
–
Check the ignition pulse generator.
x
–
Check the generator. x
Engine stalls or pops back into the
carburetor Lack of fuel
–
Turn handle

of the fuel tap to the ON posi-
tion. (Figure 500137-10 p. 20)
–
Refuel. ( p. 31)
The intake system has an air leak
–
Check rubber sleeves and carburetor for tight-
ness.
Engine overheats Coolant level low in cooling system
–
Check the cooling system for leaks.
–
Check the coolant level. ( p. 72)
Insufficient airflow
–
Switch off engine when stationary.
Radiator fins very dirty
–
Clean radiator fins.
Foam formation in cooling system
–
Drain the coolant. x ( p. 73)
–
Refill the coolant.
x
( p. 73)
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
(EXC SIX DAYS, all 450/530 XC-W
models)
–
Check the radiator fan fuse.
–
Check the radiator fan.
x
–
Check the thermostat. 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. 80)
Engine oil too thin (low viscosity)
–
Change the engine oil and oil filter and clean
the engine oil screen.
x
( p. 80)
Piston and/or cylinder worn
–
Piston/cylinder - determine the mounting clear-
ance
x
Battery discharged The battery does not charge
–
Check the charging voltage.
x
–
Check the charging current.
x
–
Check the generator. x
Undesired power consumer
–
Check the stall current.
x
Speedometer values deleted (time,
stop watch, lap times) The battery in the speedometer is
empty.
–
Change the battery in the speedometer.