KTM 250 SX-F 2023 User Manual

TROUBLESHOOTING 20
125
Faults Possible cause Action
Malfunction indicator lamp
lights up or flashes
Malfunction in the electronic
fuel injection
– Check the wiring for damage and the
electrical plug-in connections for corro-
sion and damage.
– Read out fault memory using the KTM
diagnostics 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. 116)
Engine oil too thin (low viscosi-
ty)
– Change the engine oil and oil filter,
clean the oil screen. ( p. 116)
Piston or cylinder worn – Measure the piston/cylinder mounting
clearance.
12-V battery discharged 12 V battery is not charging – Check the charging voltage.
– Check the stator winding of the alter-
nator.
Unwanted electrical power con-
sumer
– Check the open-circuit current.

KTM 250 SX-F 2023 Specifications

General

Engine Type	1-cylinder, 4-stroke engine
Bore x Stroke	78 mm x 52.3 mm
Compression Ratio	14.4:1
Starter	Electric starter
Transmission	5-speed
Fuel System	Keihin EFI, throttle body 44 mm
Cooling	Liquid cooled
Ignition	Keihin EMS
Front Suspension	WP XACT-USD, Ø 48 mm
Rear Suspension	WP XACT Monoshock with linkage
Front Brake	Disc brake
Rear Brake	Disc brake
Front Tire	80/100-21
Ground Clearance	370 mm
Displacement	249.9 cm³
Final Drive	Chain
Frame	Central double-cradle type 25CrMo4 steel
Rear Tire	100/90-19
Front Wheel	1.60 x 21
Rear Wheel	2.15 x 19
Wheelbase	1, 485 mm ± 10 mm