INSTRUMENT AND CONTROL FUNCTIONS
4-10
4
EAU41335
A
d
justin
g
the shock a
b
sor
b
er
assem
b
ly
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 avoi
d
d
ama
g
in
g
the mechanism,
d
o not attempt to turn
b
eyon
d
the
maximum or minimum settin
g
s.
Sprin
g
preloa
d
Adjust the spring preload as follows.
1. Loosen the locknut.
2. To increase the spring preload
and thereby harden the suspen-
sion, turn the adjusting nut in di-
rection (a). To decrease the spring
preload and thereby soften the
suspension, turn the adjusting nut
in direction (b).
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
turn of the adjusting nut, dis-
tance A is changed by 1.5
mm (0.06 in).
3. Tighten the locknut to the speci-
fied torque.
NOTICE:
Always
ti
g
hten the locknut a
g
ainst the
a
d
justin
g
nut, an
d
then ti
g
hten
the locknut to the specifie
d
torque.
[ECA10122]
1. Locknut
2. Spring preload adjusting nut
1. Distance A
Sprin
g
preloa
d
:
Minimum (soft):
Distance A = 218.5 mm (8.60 in)
Standard:YZ85/YZ85F
Distance A = 215.0 mm (8.46 in)
Standard:YZ85LW/YZ85LWF
Distance A = 207.0 mm (8.15 in)
For Europe only: Distance A =
212.0 mm (8.35 in)
Maximum (hard):
Distance A = 202.5 mm (7.97 in)
U1SN83E0.book Page 10 Monday, September 8, 2014 2:36 PM