Checking Chain Wear; Adjusting The Chain Tension - KTM 400 EXC EU Owner's Manual

MAINTENANCE WORK ON CHASSIS AND ENGINE

Checking chain wear

9.51
0 0 A A
0 0 0 B B
1 2 3 16 17 18

Adjusting the chain tension

9.52
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 for correct chain tension and adjust if
necessary.
–
Jack up the motorcycle. (
–
Shift gear to neutral.
–
Pull the upper chain section with the specified weight
Guideline
Weight of chain wear measurement
–
Measure distance
Info
Chain wear is not always even, so you should repeat this measurement at
different chain positions.
Maximum distance
chain section
» If the distance
–
Replace the chain.
400226-10
–
Remove the motorcycle from the work stand. (
–
Jack up the motorcycle. (
–
Push the chain at the end of the chain sliding component upwards to measure
chain tension
Info
The upper chain section
Chain wear is not always even, so you should repeat this measurement at
different chain positions.
400213-10
p. 33)
of 18 chain links in the lower chain section.

at the longest

is greater than the specified measurement:

Info
When you replace the chain, you should also replace the rear
sprocket and the engine sprocket.
New chains wear out faster on old, worn sprockets.
p. 33)
.

must be taut.

.

10... 15 kg (22... 33 lb.)
272 mm (10.71 in)
p. 33)
53