Yamaha YZF-R1 2020, Service Manual

Page: 135 / 822

PERIODIC MAINTENANCE
3-28
range. To obtain a precise adjustment, check
the number of turns and modify the minimum
and standard specifications as necessary.
Compression damping (for slow compres-
sion damping)
NOTICE
ECA13590
Never go beyond the maximum or minimum
adjustment positions.
1. Adjust:
• Compression damping (for slow compression
damping)
a. Turn the adjusting screw “1” in direction
“a” or “b”.
TIP
• Although the total number of clicks of a damp-
ing force adjusting mechanism may not exactly
match the above specifications due to small
differences in production, the actual number of
clicks always represents the entire adjusting
range. To obtain a precise adjustment, check
the number of clicks and modify the minimum
and standard specifications as necessary.
• When turning the damping force adjusting
screw in direction “a”, the 0 click position and
the 1 click position may be the same.
EAS30942
ADJUSTING THE PRELOAD OF THE REAR
SHOCK ABSORBER ASSEMBLY (for
YZF-R1M)
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. Loosen the locknut “1”.
b. Adjust the spring preload with the special
wrench included in the owner’s tool kit.
c. Turn the adjusting ring “2” in direction “a”
or “b”.
Direction “a”
Compression damping is increased
(suspension is harder).
Direction “b”
Compression damping is decreased
(suspension is softer).
Slow compression damping
Minimum (soft)
18 click(s) in direction “b”
*
Standard
12 click(s) in direction “b”
*
Maximum (hard)
1 click(s) in direction “b”
*
* With the adjusting screw fully turned in
direction “a”
1
a b
Direction “a”
Spring preload is increased (suspen-
sion is harder).
Direction “b”
Spring preload is decreased (suspen-
sion is softer).
1
a b
1
a
b
2