KTM 250 SX-F 2023 User Manual

11 SERVICE WORK ON THE CHASSIS
56
H01167-01
Main work
– Move the handlebar to the straight-ahead position. Move the
fork legs to and fro in the direction of travel.
Play should not be detectable on the steering head bearing.
» If there is detectable play:
– Adjust the steering head bearing play. ( p. 56)
– Move the handlebar to and fro over the entire steering range.
It must be possible to move the handlebar easily over the
entire steering range. There should be no detectable detent
positions.
» If detent positions are detected:
– Adjust the steering head bearing play. ( p. 56)
– Check the steering head bearing and adjust if neces-
sary.
Finishing work
– Remove the motorcycle from the lift stand. ( p. 49)
11.12 Adjusting the steering head bearing play
Preparatory work
– Raise the motorcycle with a lift stand. ( p. 49)
– Take off the handlebar cushion.
S05338-10
Main work
–
Loosen screws
1
.
–
Remove screw
2
.
–
Loosen and retighten screw
3
.
Guideline
Screw, top steering
head
M20x1.5 12 Nm (8.9 lbf ft)
– Using a plastic hammer, tap lightly on the upper triple clamp
to avoid stresses.
–
Mount and tighten screw
2
.
Guideline
Screw, top
steering stem
M8 20 Nm (14.8 lbf ft)
Loctite
®
243™
–
Tighten screws
1
.
Guideline
Screw, top triple
clamp
M8 17 Nm (12.5 lbf ft)
– Check the steering head bearing play. ( p. 55)
Finishing work
– Mount the handlebar cushion.
– Remove the motorcycle from the lift stand. ( p. 49)

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