TROUBLESHOOTING
96
Faults
Possible cause
Action
The engine cannot be cranked (elec-
tric starter)
Operating error
–
Go through the steps of starting the engine.
Battery discharged
–
Recharge the battery.
–
Check the charging voltage.
x
–
Check the closed current.
x
–
Alternator - check the light and battery wind-
ing.
x
Main fuse blown
–
Remove the main fuse. (
–
Install the main fuse. (
Starter relay defective
–
Check the starter relay.
x
Starter motor defective
–
Check the starter motor.
x
Engine turns but does not start
Operating error
–
Go through the steps of starting the engine.
Motorcycle was out of use for a long
time and there is old fuel in the float
chamber
–
Empty the carburetor float chamber.
x
Fuel feed interrupted
–
Check the fuel tank breather.
–
Clean the fuel tap.
–
Check/adjust the carburetor components.
x
Spark plug oily or wet
–
Clean and dry the spark plug or replace if nec-
essary.
Electrode distance (plug gap) of spark
plug too wide
–
Adjust the plug gap.
Guideline
Spark plug electrode gap
0.7 mm (0.028 in)
Ignition system defective
–
Check the ignition system.
x
Short-circuit cable in wiring harness
frayed, short-circuit button or emer-
gency OFF switch defective
–
Check the wiring harness. (visual check)
–
Check the electrical system.
Plug connector of CDI control device,
pulse generator or ignition coil oxi-
dized.
–
Clean the plug connector and treat it with con-
tact spray.
Water in carburetor or jets blocked
–
Check/adjust the carburetor components.
x
Engine has no idle
Idling jet blocked
–
Check/adjust the carburetor components.
x
Adjusting screws on carburetor dis-
torted
–
Carburetor - adjust the idle speed.
x
Spark plug defective
–
Change spark plug.
Ignition system defective
–
Check the ignition system.
x
Engine does not speed up
Carburetor running over because float
needle dirty or worn
–
Check/adjust the carburetor components.
x
Loose carburetor jets
–
Check/adjust the carburetor components.
x
Ignition system defective
–
Check the ignition system.
x
Engine has a lack of power
Fuel feed interrupted
–
Check the fuel tank breather.
–
Clean the fuel tap.
–
Check/adjust the carburetor components.
x
Air filter heavily contaminated
–
Clean the air filter and air filter box.
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.
Valve clearance too little
–
Adjust the valve clearance.
x
Ignition system defective
–
Check the ignition system.
x
Engine stalls or pops back into the
carburetor
Lack of fuel
–
Turn handle
of the fuel tap to the
ON
posi-
–
Refuel. (
Содержание 250 EXC-F AUS
Страница 2: ......
Страница 77: ...WHEELS TIRES 75 Torque wrench with various accessories in set 58429094000 ...
Страница 86: ...COOLING SYSTEM 84 Refit the radiator cap Make a short test ride Check the coolant level p 82 ...
Страница 110: ...SUBSTANCES 108 Super unleaded ROZ 95 RON 95 PON 91 According to DIN EN 228 ROZ 95 RON 95 PON 91 ...
Страница 117: ... 3211689en 3211689en KTM Sportmotorcycle AG 5230 Mattighofen Austria http www ktm com 09 2010 Photo Mitterbauer ...