Yamaha XSR900 Owner's Manual page 88

Periodic maintenance and adjustment
Distance A:
1
45.0–50.0 mm (1.77–1.97 in)
2
5. If distance A is incorrect, adjust it
as follows. NOTICE: Improper
3 drive chain slack will overload
the engine as well as other vital
parts of the motorcycle and can
4
lead to chain slippage or break-
age. If distance A is more than
5
55.0 mm (2.17 in), the chain can
damage the frame, swingarm,
6
and other parts. To prevent this
from occurring, keep the drive
7
chain slack within the specified
limits.
[ECA23070]
8
To adjust the drive chain slack
9
Consult a Yamaha dealer before ad-
justing the drive chain slack.
10
1. Loosen the axle nut and the lock-
nut on each side of the swingarm.
11
12
13
1 2
5
1. Drive chain puller
2. Axle nut
3. Drive chain slack adjusting bolt
4. Locknut
5. Alignment marks
2. To tighten the drive chain, turn the
drive chain slack adjusting bolt on
EAU74260
each side of the swingarm in direc-
tion (a). To loosen the drive chain,
turn the adjusting bolt on each side
of the swingarm in direction (b),
and then push the rear wheel for-
ward.
3 4
1. Drive chain slack adjusting bolt
2. Locknut
TIP
Using the alignment marks on each
side of the swingarm, make sure that
both drive chain pullers are in the same
position for proper wheel alignment.
8-25
1
2
(a)
(b)
3. Tighten the axle nut, then the lock-
nuts to their specified torques.
Tightening torques:
Axle nut:
105 N·m (10.5 kgf·m, 77 lb·ft)
Locknut:
16 N·m (1.6 kgf·m, 12 lb·ft)
4. Make sure that the drive chain pull-
ers are in the same position, the
drive chain slack is correct, and