KTM 250 SX 2019 User Manual

11 SERVICE WORK ON THE CHASSIS
76
400987-10
–
Pull at the top part of the chain with the specified weight
A
.
Guideline
Weight, chain wear measure-
ment
10 … 15 kg (22 … 33 lb.)
–
Measure distance
B
of 18 chain rollers in the lower chain
section.
Info
Chain wear is not always even, so you should repeat
this measurement at different chain positions.
Maximum distance
B
from
18 chain rollers at the
longest chain section
272 mm (10.71 in)
»
If distance
B
is greater than the specified measurement:
– Change the drivetrain kit.
Info
When a new chain is mounted, the rear sprocket
and engine sprocket should also be changed.
New chains wear out faster on old, worn sprock-
ets.
K01198-10
– Check the chain sliding guard for wear.
» If the lower edge of the chain pins is in line with, or below,
the chain sliding guard:
– Change the chain sliding guard.
– Check that the chain sliding guard is firmly seated.
» If the chain sliding guard is loose:
– Tighten the screws on the chain sliding guard.
Guideline
Screw, chain
sliding guard
M6 6 Nm (4.4 lbf ft)
Loctite
®
243™

KTM 250 SX 2019 Specifications

General

Displacement	249 cc
Bore x Stroke	66.4 mm x 72 mm
Starter	Kickstarter
Transmission	5-speed
Ignition	Kokusan
Ground Clearance	375 mm
Seat Height	950 mm
Engine Type	2-stroke
Clutch	Wet, multi-disc clutch
Frame Type	Central double-cradle type 25CrMo4 steel
Front Suspension	WP XACT 48 mm fork
Rear Suspension	WP XACT shock absorber with linkage
Front Brake	Disc brake, 260 mm
Rear Brake	Disc brake, 220 mm
Fuel Tank Capacity	7.5 liters