Yamaha 2009 YZF-R6Y Owner's Manual page 78

PERIODIC MAINTENANCE AND ADJUSTMENT
1. Drive chain slack
4. If the drive chain slack is incorrect,
adjust it as follows.
To adjust the drive chain slack
1. Loosen the axle nut and the lock-
nut on each side of the swingarm.
7
1. Axle nut
2. Drive chain slack adjusting bolt
3. Locknut
4. Alignment marks
2. To tighten the drive chain, turn the
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drive chain slack adjusting bolt on
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. NOTICE: Improper drive
chain slack will overload the en-
gine as well as other vital parts
of the motorcycle and can lead
to chain slippage or breakage.
To prevent this from occurring,
keep the drive chain slack with-
in the specified limits.
7-26
TIP
Using the alignment marks on each
chain puller, make sure that both chain
pullers are in the same position for
proper wheel alignment. Use the end of
the swingarm as the reference point for
the alignment marks.
3. Tighten the axle nut to the speci-
fied torque.
Tightening torque:
Axle nut:
110 Nm (11.0 m·kgf, 80 ft·lbf)
4. Tighten the adjusting bolts in direc-
tion (a) to their specified torque.
Tightening torque:
Drive chain slack adjusting bolt:
2 Nm (0.2 m·kgf, 1.4 ft·lbf)
5. Tighten the locknuts to their speci-
fied torque.
Tightening torque:
Locknut:
16 Nm (1.6 m·kgf, 11 ft·lbf)
[ECA10571]