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KTM 125 SX User Manual

KTM 125 SX
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11 SERVICE WORK ON THE CHASSIS 68
H00016-10
Main work
Loosen nut
.
Loosen nuts
.
Adjust the chain tension by turning adjusting screws
to the left and right.
Guideline
Chain tension 55… 58 mm (2.17… 2.28 in)
Turn adjusting screws
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
. The rear wheel is now correctly aligned.
Tighten nuts
.
Make sure that chain adjusters
are fitted correctly on adjusting screws
.
Tighten nut
.
Guideline
Nut, rear wheel spindle M25x1.5 80 Nm (59 lbf ft)
Info
The wide adjustment range of the chain adjusters (32 mm) enables different
secondary ratios with the same chain length.
Chain adjusters
can be turned by 180°.
Finishing work
Remove the motorcycle from the lift stand. ( p. 44)
11.38 Checking the chain, rear sprocket, engine sprocket, and chain guide
Preparatory work
Raise the motorcycle with a lift stand. ( p. 44)
400227-01
Main work
Shift the transmission to idle.
Check the rear sprocket and engine sprocket for wear.
» If the rear sprocket and engine sprocket are 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
.
Guideline
Weight, chain wear measurement 10… 15 kg (22… 33 lb.)
Measure the distance
of 18 chain links in the lower chain section.
Info
Chain wear is not always even, so you should repeat this measurement at
different chain positions.
Maximum distance
at the longest
chain section
272 mm (10.71 in)
»
If the distance
is greater than the specified measurement:
Change the drivetrain kit.
Info
When the chain is replaced, the rear sprocket and engine sprocket
should also be changed.
New chains wear out faster on old, worn sprockets.

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KTM 125 SX Specifications

General IconGeneral
BrandKTM
Model125 SX
CategoryMotorcycle
LanguageEnglish

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