KTM 450 SX-F 2023 User Manual

11 SERVICE WORK ON THE CHASSIS
84
S05362-10
Main work
–
Loosen nut
1
.
–
Loosen nuts
2
.
–
Adjust the chain tension by turning adjusting screws
3
left
and right.
Guideline
Chain tension 58 … 61 mm (2.28 …
2.4 in)
Turn adjusting screws
3
on the left and right so that the
markings on the left and right chain adjusters are in the
same position relative to reference marks
A
. The rear
wheel is then correctly aligned.
–
Tighten nuts
2
.
–
Make sure that chain adjusters
4
are fitted correctly on
adjusting screws
3
.
–
Tighten nut
1
.
Guideline
Nut, rear wheel spin-
dle
M22x1.5 80 Nm (59 lbf ft)
Info
The wide adjustment range of the chain adjusters
(32 mm (1.26 in)) enables different secondary ratios
with the same chain length.
Chain adjusters
4
can be turned by 180°.
Finishing work
– Remove the motorcycle from the lift stand. ( p. 53)
11.39 Checking the chain, rear sprocket, engine sprocket, and chain guide
Preparatory work
– Raise the motorcycle with a lift stand. ( p. 53)
400227-01
Main work
– Shift the transmission into neutral.
– Check the chain, rear sprocket and engine sprocket for wear.
» If the chain, rear sprocket or engine sprocket is worn:
– Change the drivetrain kit.
Info
The engine sprocket, rear sprocket and chain
should always be replaced together.

KTM 450 SX-F 2023 Specifications

General

Engine Type	Single-cylinder, 4-stroke
Displacement	449.9 cc
Bore x Stroke	95 mm x 63.4 mm
Starter	Electric starter
Compression Ratio	13.1:1
Transmission	5-speed
Final Drive	Chain
Cooling	Liquid-cooled
Frame	Central Double-Cradle Type 25CrMo4 Steel
Front Suspension	WP XACT-USD, Ø 48 mm
Rear Suspension	WP XACT Monoshock with linkage
Ground Clearance	370 mm
Fuel System	Keihin EFI, 44 mm
Front Brake	260 mm disc
Rear Brake	220 mm disc
Fuel Tank Capacity	7.2 L