Checking The Chain, Rear Sprocket, And Engine Sprocket - KTM 125 DUKE EU Repair Manual

12 WHEELS
12.5.7

Checking the chain, rear sprocket, and engine sprocket

A 0 0 A
B 0 0 0 B
1 2 3
Main work
–
Loosen nut
–
Loosen nuts
–
Adjust the chain tension by turning adjusting screws
Guideline
Chain tension
Turn adjusting screws
and right chain adjuster
marks
–
Tighten nuts
–
Make sure that chain adjusters
–
Tighten nut
Guideline
B00732-10
Nut, rear wheel spindle
–
Check the rear sprocket and engine sprocket for wear.
»
100132-10
–
Shift gear to neutral.
–
Pull the lower chain section with specified weight
Guideline
Weight, chain wear measurement
–
Measure the distance
Maximum distance
chain section
»
18 19 20
401288-10
.
1
.
2
on the left and right so that the markings on the left
3
are in the same position in relation to reference
4
. The rear wheel is then correctly aligned.
C
Info
The upper chain section must be taut.
Chain wear is not always even, so you should check the setting at different
chain positions.
.
2
.
1
If the rear sprocket and engine sprocket are worn:
–
Change the power set.
Info
The engine sprocket, rear sprocket, and chain should always be
replaced together.
of 20 chain links in the lower chain section.
B
Info
Chain wear is not always even, so you should repeat this measurement at
different chain positions.
at the longest
B
If the distance is greater than the specified measurement:
B
–
Change the power set.
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.
on the left and right.
3
5... 7 mm (0.2... 0.28 in)
are fitted correctly on adjusting screws
4
M14x1.5
.
A
15 kg (33 lb.)
301.6 mm (11.874 in)
59
.
3
60 Nm
(44.3 lbf ft)