KTM 350 SX-F User Manual

11 SERVICE WORK ON THE CHASSIS
76
11.37 Checking the chain, rear sprocket, engine sprocket, and chain guide
Preparatory work
– Raise the motorcycle with a lift stand. ( p. 50)
400227-01
Main work
– Shift the transmission to idle.
– 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.
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 an old, worn rear
sprocket or engine sprocket.

KTM 350 SX-F Specifications

General

Displacement	349.7 cc
Bore x Stroke	88 mm x 57.5 mm
Starter	Electric starter
Transmission	5-speed
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
Front Brake	Disc brake
Rear Brake	Disc brake
Ground Clearance	370 mm
Seat Height	950 mm
Ignition	Keihin EMS
Final Drive	Chain
Engine Type	Single-cylinder, 4-stroke
Fuel Tank Capacity	7.2 L