Checking The Chain, Rear Sprocket, Engine Sprocket, And Chain Guide - KTM 350 EXC-F 2019 Owner's Manual

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12 SERVICE WORK ON THE CHASSIS
12.39
88

Checking the chain, rear sprocket, engine sprocket, and chain guide

400227-01
400987-10
Preparatory work
Raise the motorcycle with the lift stand. (
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.
Pull at the top part of the chain with the specified weight
Guideline
Weight of chain wear mea-
surement
B
Measure distance
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.
B
Maximum distance
from
18 chain rollers at the
longest chain section
»
B
If distance
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.
p. 62)
A
.
10 ... 15 kg (22 ... 33 lb.)
272 mm (10.71 in)

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