KTM 250 EXC TPI Owner's Manual page 93

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Pull on the upper chain section with the specified weight
Guideline
Weight, chain wear measure-
ment
Measure the distance
section.
Info
Chain wear is not always even, so you should repeat
this measurement at different chain positions.
Maximum distance
18 chain rollers at the
longest chain section
»
If distance
Change the drivetrain kit.
400987-10
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 screws on the chain sliding guard.
Guideline
Screw, chain
sliding guard
E00886-10
SERVICE WORK ON THE CHASSIS 12
10 ... 15 kg (22 ... 33 lb.)
B
of 18 chain rollers in the lower chain
272 mm (10.71 in)
B
from
B
is greater than the specified measurement:
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.
M6
6 Nm (4.4 lbf ft)
A
.
Loctite
243™
®
91

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