KTM 450 SX-F 2017, Руководство пользователя

Страница: 103 / 125

20 TROUBLESHOOTING
101
Faults Possible cause Action
The engine does not turn when the
starter button is pressed Operating error
–
Carry out the start procedure. ( p. 22)
Battery is discharged
–
Recharge the battery. ( p. 82)
–
Check the charging voltage.
–
Check the open-circuit current.
–
Check the stator winding of the alternator.
Main fuse blown
–
Change the main fuse. ( p. 83)
Starter relay defective
–
Check the starter relay.
Starter motor defective
–
Check the starter motor.
Engine turns but does not start The plug-in connection of the fuel
hose connection is not connected
–
Connect the plug-in connection of the fuel line.
Fuel screen in the fuel hose connec-
tion is clogged
–
Change the fuel screen. ( p. 93)
Idle speed is not set correctly
–
Adjust the idle speed. ( p. 90)
Spark plug oily or wet
–
Clean and dry the spark plug, or change it if
necessary.
Electrode distance (plug gap) of spark
plug too wide
–
Adjust the plug gap.
Guideline
Spark plug electrode gap
0.8 mm (0.031 in)
Short circuit cable in wiring harness
frayed, kill switch defective
–
Check the wiring harness. (visual check)
–
Check the electrical system.
Defect in fuel injection system
–
Read out the fault memory using the KTM diag-
nostics tool.
Engine does not speed up Defect in fuel injection system
–
Read out the fault memory using the KTM diag-
nostics tool.
Engine has too little power Air filter is very dirty
–
Clean the air filter and air filter box.
( p. 52)
Fuel filter is very dirty
–
Change the fuel filter.
Defect in fuel injection system
–
Read out the fault memory using the KTM diag-
nostics tool.
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.
( p. 55)
Valve clearance too little
–
Adjust the valve clearance.
Engine dies during the trip Lack of fuel
–
Refuel. ( p. 26)
Engine overheats Too little coolant in cooling system
–
Check the cooling system for leakage.
–
Check the coolant level. ( p. 86)
Too little air stream
–
Switch off the engine when standing.
Radiator fins very dirty
–
Clean radiator fins.
Foam formation in cooling system
–
Drain the coolant. ( p. 86)
–
Refill the coolant. ( p. 87)
Bent radiator hose
–
Change the radiator hose.
Malfunction indicator lamp lights up
or flashes Defect in fuel injection system
–
Stop the motorcycle and identify the faulty part
using the blink code.
–
Check the cabling for damage and the electri-
cal plug-in connections for corrosion and dam-
age.
–
Read out the fault memory using the KTM diag-
nostics tool.
High oil consumption Engine vent hose bent
–
Route the vent hose without bends or change it
if necessary.
Engine oil level too high
–
Check the engine oil level. ( p. 94)
Engine oil too thin (low viscosity)
–
Change the engine oil and oil filter and clean
the oil screens.
( p. 95)
Piston or cylinder worn
–
Measure the piston/cylinder mounting clear-
ance.