KTM Freeride 250 R EU, Owner'S Manual

Page: 96 / 115

21 TROUBLESHOOTING
94
Faults Possible cause Action
The engine cannot be cranked (elec-
tric starter) Operating error
–
Carry out the start procedure. ( p. 25)
Battery is discharged
–
Check the charging voltage.
–
Check the open-circuit current.
–
Check the alternator.
–
Recharge the battery. ( p. 73)
Main fuse blown
–
Change the main fuse. ( p. 74)
Starter relay defective
–
Check the starter relay.
Starter motor defective
–
Check the starter motor.
Engine turns but does not start Operating error
–
Carry out the start procedure. ( p. 25)
The motorcycle has been in disuse for
an extended period and old fuel is in
the float chamber
–
Empty the carburetor float chamber.
( p. 85)
Fuel supply interrupted
–
Check the fuel tank breather.
–
Clean the fuel tap.
–
Check/adjust the carburetor components.
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
0.60 mm (0.0236 in)
Fault in ignition system
–
Check the ignition system.
Short circuit cable in wiring harness
frayed, kill switch defective
–
Check the wiring harness. (visual check)
–
Check the electrical system.
Water in carburetor or jets blocked
–
Check/adjust the carburetor components.
Engine has no idle Idling jet blocked
–
Check/adjust the carburetor components.
Adjusting screws on the carburetor
are in turned to the wrong position
–
Carburetor - adjust the idle speed. ( p. 84)
Faulty spark plug
–
Change the spark plug.
Faulty ignition system
–
Check the ignition system.
Engine does not speed up The carburetor is flowing over
because the float needle is dirty or
worn
–
Check/adjust the carburetor components.
Loose carburetor jets
–
Check/adjust the carburetor components.
Fault in ignition system
–
Check the ignition system.
Engine has too little power Fuel supply interrupted
–
Check the fuel tank breather.
–
Clean the fuel tap.
–
Check/adjust the carburetor components.
Air filter is very dirty
–
Clean the air filter and air filter housing.
( p. 48)
Exhaust system leaky, deformed or
too little glass fiber yarn filling in
main silencer
–
Check exhaust system for damage.
–
Change glass fiber yarn filling in the main
silencer.
( p. 49)
Fault in ignition system
–
Check the ignition system.
Damaged membrane or membrane
housing
–
Check the membrane and membrane housing.
The engine stutters or there is back-
firing through the carburetor Lack of fuel
–
Turn handle

of the fuel tap to the ON posi-
tion. (Figure C00897-10 p. 16)
–
Turn handle

of the fuel tap to the RES posi-
tion. (Figure C00897-10 p. 16)
–
Refuel. ( p. 28)
The engine takes in false air
–
Check the intake flange and carburetor for firm
seating.
Connector or ignition coil loose or
oxidized
–
Clean the connector and treat with contact
spray.