PERIODIC MAINTENANCE AND ADJUSTMENT
6-25
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EAU22760
Drive chain slack
The drive chain slack should be
checked before each ride and adjusted
if necessary.
EAU52480
To check the drive chain slack
1. Place the motorcycle on the side-
stand.
TIP
When checking and adjusting the drive
chain slack, there should be no weight
on the motorcycle.
2. Shift the transmission into the neu-
tral position.
3. Pull the drive chain up above the
drive chain guard installation bolt
with a force of 50 N (5.0 kgf, 11
lbf).
4. Measure drive chain slack be-
tween the drive chain guard and
the bottom of the chain as shown.
5. If the drive chain slack is incorrect,
adjust it as follows.
EAU34317
To adjust the drive chain slack
Consult a Yamaha dealer before ad-
justing the drive chain slack.
1. Loosen the axle nut and the lock-
nut on each side of the swingarm.
2. To tighten the drive chain, turn the
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.
[ECA10571]
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.
3. Tighten the axle nut, then the lock-
Drive chain slack:
48.0–58.0 mm (1.89–2.28 in)
1. Drive chain guard
2. Drive chain slack
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2
1. Alignment marks
2. Locknut
3. Drive chain slack adjusting bolt
4. Axle nut
5. Drive chain puller
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(a)
(b)
1DX-9-E2.book 25 ページ 2013年2月26日 火曜日 午後2時34分