Yamaha YZ85M 2021 - Adjusting the Shock Absorber Assembly

Instrument and control functions
4-12
4
EAU41339
Adjusting the shock absorber
assembly
This shock absorber assembly is
equipped with a spring preload adjust-
ing nut, a rebound damping force ad-
justing screw and a compression
damping force adjusting screw.
NOTICE
ECA10102
To avoid damaging the mechanism,
do not attempt to turn beyond the
maximum or minimum settings.
Spring preload
Adjust the spring preload as follows.
1. Remove the seat. (See page 4-8.)
2. Remove the bolt, and then take
the left side panel off.
3. Loosen the clamp bolt and clamp
screw, and then remove the air fil-
ter joint.
4. Loosen the locknut.
5. Turn the adjusting nut in direction
(a) to increase the spring preload.
Turn the adjusting nut in direction
(b) to decrease the spring preload.
 A special wrench can be ob-
tained at a Yamaha dealer to
make this adjustment.
 The spring preload setting is
determined by measuring
distance A, shown in the illus-
tration. The longer distance A
is, the lower the spring pre-
load; the shorter distance A
is, the higher the spring pre-
load. With each complete
1. Bolt
2. Left side panel
1
2
1. Clamp bolt
2. Clamp screw
3. Air filter joint
1. Locknut
2. Spring preload adjusting nut
1
2
3
1
2
(a)
(b)
UB4B11E0.book Page 12 Tuesday, February 19, 2019 1:10 PM