Yamaha MT09N, Owner'S Manual

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Perio d ic maintenance an d a d justment
8-22
8
EAU22762
Drive chain slack
The drive chain slack should be
checked before each ride and adjusted
if necessary.
EAU91552
To check the d rive 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
neutral position.
3. Find the center point of the chain
(position B) by measuring (approx.
32 mm (1.26 in)) forward from the
edge of the drive chain guard as
shown.
4. Push down on the center of the
drive chain and measure the dis-
tance A from the drive chain guard
to the middle of the chain link be-
ing pressed down at position B.
5. If distance A is incorrect, adjust it
as follows.
NOTICE:
Improper
d rive chain slack will overloa d
the en g ine as well as other vital
parts of the motorcycle an d can
lea d to chain slippa g e or b reak-
a g e. If d istance A is more than
46.0 mm (1.81 in), the chain can
d ama g e the frame, swin g arm,
an d other parts. To prevent this
from occurrin g , keep the d rive
chain slack within the specifie d
limits.
[ECA23070]
EAU74260
To a d just the d rive 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.
1. Edge of the drive chain guard
2. Position B
1. Drive chain guard
2. Distance A
2
1
2
1
Distance A:
36.0–41.0 mm (1.42–1.61 in)
UB7N11E0.book Page 22 Tuesday, August 31, 2021 5:08 PM