KTM 50 SX 2017, Руководство пользователя

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11 SERVICE WORK ON THE CHASSIS
52
11.35 Adjusting 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.
Preparatory work
–
Raise the motorcycle with a lift stand. ( p. 34)
–
Check the chain tension. ( p. 51)
101947-10
Main work
–
Loosen nut

.
–
Adjust the chain tension by turning adjusting nuts  left and right.
Guideline
Chain tension 5… 8 mm (0.2… 0.31 in)
Turn adjusting nuts

equally on the left and right. The rear wheel must be
aligned with the front wheel.
–
Make sure that the chain adjuster support plates  are in contact with adjusting
nuts  .
–
Tighten nut  .
Guideline
Nut, rear wheel spindle M12x1 40 Nm
(29.5 lbf ft)
11.36 Checking the chain, rear sprocket, engine sprocket, and chain guide
Preparatory work
–
Raise the motorcycle with a lift stand. ( p. 34)
–
Remove the engine sprocket cover. ( p. 49)
100896-10
Main work
–
Check the engine sprocket cover for wear.
» If the engine sprocket cover is worn through in the marked area
 :
–
Change the engine sprocket cover.
400227-01
–
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.
When fitting the chain joint, always make sure that the closed side
of the joint faces forward (riding direction).
–
Check the chain for wear.
» If the chain is worn:
–
Change the drivetrain kit.