Yamaha MT-09 2021, Service Manual

Page: 121 / 752

3 -25
PERIODIC MAINTENANCE
2. Adjust:
• Compression damping (slow compression
damping)
a. Turn the adjusting bolt “1” in direction “a” or
“b”.
TIP
Although the total number of clicks of a damping
force adjusting mechanism may not exactly
match the above specifications due to small dif-
ferences in production, the actual number of
clicks always represents the entire adjusting
range. To obtain a precise adjustment, it would
be advisable to check the number of clicks of
each damping force adjusting mechanism and
to modify the specifications as necessary.
EAS30808
CHECKING THE REAR SHOCK ABSORBER
ASSEMBLY
Refer to “CHECKING THE REAR SHOCK AB-
SORBER ASSEMBLY” on page 4-80.
EAS30655
ADJUSTING THE REAR SHOCK ABSORBER
ASSEMBLY (for MTN890)
WARNING
EWA13120
Securely support the vehicle so that there is
no danger of it falling over.
Spring preload
NOTICE
ECA13590
Never go beyond the maximum or minimum
adjustment positions.
1. Adjust:
• Spring preload
a. Adjust the spring preload with the special
wrench “1” and extension bar “2” included
in the owner’s tool kit.
b. Turn the adjusting ring “3” in direction “a” or
“b”.
c. Align the desired position on the adjusting
ring with the stopper “4”.
Direction “a”
Compression damping is increased
(suspension is harder).
Direction “b”
Compression damping is decreased
(suspension is softer).
Slow compression damping
Adjustment value from the start
position (Soft)
18 (MTN890D)
Adjustment value from the start
position (STD)
12 (MTN890D)
Adjustment value from the start
position (Hard)
1 (MTN890D)
* Start position: With the adjusting bolt ful-
ly turned in direction “a”
1
b
a
Direction “a”
Spring preload is increased (suspen-
sion is harder).
Direction “b”
Spring preload is decreased (suspen-
sion is softer).
Spring preload
Adjustment value (Soft)
1 (MTN890)
Adjustment value (STD)
4 (MTN890)
Adjustment value (Hard)
7 (MTN890)
7 6 5 4
3 2 1
2
3
1
b
a
4