Checking The Chain Tension; Adjusting The Chain Tension - KTM 150 SX Owner's Manual

SERVICE WORK ON THE CHASSIS

Checking the chain tension

11.36
Warning
Danger of accidents Danger caused by incorrect chain tension.
–
If the chain tension is too high, the components of the secondary power train (chain, engine sprocket, rear sprocket, bear-
ings in transmission and rear wheel) are under additional load. Apart from premature wear, in extreme cases the chain can
rupture or the countershaft of the transmission can break. On the other hand, if the chain is loose, it can fall off the engine
sprocket or the rear sprocket and block the rear wheel or damage the engine. Check the chain tension and correct if neces-
sary.

Adjusting the chain tension

11.37
Warning
Danger of accidents Danger caused by incorrect chain tension.
–
If the chain tension is too high, the components of the secondary power train (chain, engine sprocket, rear sprocket, bear-
ings in transmission and rear wheel) are under additional load. Apart from premature wear, in extreme cases the chain can
rupture or the countershaft of the transmission can break. On the other hand, if the chain is loose, it can fall off the engine
sprocket or the rear sprocket and block the rear wheel or damage the engine. Check the chain tension and correct if neces-
sary.
–
Raise the motorcycle with the lift stand. (
–
Push the chain at the end of the chain sliding component upwards to measure
chain tension
Info
The bottom chain section
Chain wear is not always even; repeat this measurement at different chain
positions.
Chain tension
B00421-10 » If the chain tension does not meet specifications:
–
Adjust the chain tension. (
–
Remove the motorcycle from the lift stand. (
–
Raise the motorcycle with the lift stand. (
–
Check the chain tension. (
–
Loosen nut
–
Loosen nuts
–
Adjust the chain tension by turning the adjusting screws
Guideline
Chain tension
Turn adjusting screws
and right chain adjusters are in the same position relative to the reference
marks . The rear wheel is then correctly aligned.

–
Tighten nuts
–
Make sure that chain adjusters
–
Tighten nut
Guideline
Nut, rear wheel spindle
Info
The wide adjustment range of the chain adjusters (32 mm (1.18 in))
enables different secondary ratios with the same chain length.
Chain adjusters
B00343-11
–
Remove the motorcycle from the lift stand. (
.

must be taut.

p. 51)
p. 51)
.

.

on the left and right so that the markings on the left

.

are fitted correctly on adjusting screws

.

can be turned by 180°.

p. 37)
55... 58 mm (2.17... 2.28 in)
p. 37)
p. 37)
left and right.

55... 58 mm (2.17... 2.28 in)
M20x1.5 80 Nm (59 lbf ft)
p. 37)
51
.
