11 SERVICE WORK ON THE CHASSIS
64
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. 40)
– Check the chain tension. ( p. 63)
F02198-10
Main work
(50 SX, FACTORY EDITION)
–
Loosen nut
1
.
–
Loosen nuts
2
.
–
Adjust the chain tension by turning adjusting screws
3
left and right.
Guideline
Chain tension 5 … 8 mm (0.2 …
0.31 in)
Turn the adjusting screws
3
on the left and right
so that the markings on the left and right chain
adjusters
4
are in the same position relative to the
reference marks
A
. The rear wheel is then correctly
aligned.
–
Tighten nuts
2
.
–
Make sure that chain adjusters
4
are fitted correctly on
adjusting screws
3
.
–
Tighten nut
1
.
Guideline
Nut, rear wheel
spindle
M12x1 40 Nm
(29.5 lbf ft)
101947-10
(50 SX MINI)
–
Loosen nut
1
.
–
Adjust the chain tension by turning adjusting nuts
2
left
and right.
Guideline
Chain tension 5 … 8 mm (0.2 …
0.31 in)
Turn adjusting nuts
2
equally on the left and right.
The rear wheel must be aligned with the front wheel.
–
Make sure that the chain adjuster support plates
3
are in
contact with adjusting nuts
2
.
–
Tighten nut
1
.
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