Checking The Chain Tension - KTM 125 SX 2023 Owner's Manual

11 SERVICE WORK ON THE CHASSIS
11.39
72
Note
Environmental hazard Hazardous substances cause environmental damage.
–
Dispose of oils, grease, filters, fuel, cleaning agents, brake fluid, etc., correctly and in compliance with
the applicable regulations.
Info
The service life of the chain depends largely on its maintenance.
400725-01

Checking the chain tension

Warning
Danger of accidents Incorrect chain tension damages components and results in accidents.
If the chain is tensioned too much, the chain, engine sprocket, rear sprocket, transmission and rear
wheel bearings wear more quickly. Some components may break if overloaded.
If the chain is too loose, the chain may fall off the engine sprocket or the rear sprocket. As a result, the
rear wheel locks or the engine will be damaged.
–
Check the chain tension regularly.
–
Set the chain tension in accordance with the specification.
F03680-10
Preparatory work
–
Raise the motorcycle with a lift stand. (
Main work
–
Rinse off loose dirt with a soft jet of water.
–
Remove old grease residue with chain cleaner.
Chain cleaner ( p. 140)
–
After drying, apply chain spray.
Off-road chain spray (
Finishing work
–
Remove the motorcycle from the lift stand. (
Preparatory work
–
Raise the motorcycle with a lift stand. (
Main work
–
Pull the chain at the end of the chain sliding piece upward to
measure chain tension A
Guideline
1
Lower chain section
Info
Chain wear is not always even, so you should repeat
this measurement at different chain positions.
Chain tension
» If the chain tension does not meet the specification:
–
Adjust the chain tension. (
p. 48)
p. 140)
p. 48)
p. 48)
.
must be taut.
58 ... 61 mm (2.28 ...
2.4 in)
p. 73)