Adjusting The Shock Absorber Assembly - Yamaha WR450F 2013 Owner's Manual

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1. Bleed screw
3. Install the bleed screws.
4. Lower the front wheel so that it is
on the ground, and then put the
sidestand down.
INSTRUMENT AND CONTROL FUNCTIONS
Adjusting the shock absorber
assembly
This shock absorber assembly is
equipped with a spring preload adjust-
ing ring, a rebound damping force ad-
justing screw, a compression damping
force adjusting bolt (for fast compres-
sion damping) and a compression
damping force adjusting screw (for
slow compression damping).
NOTICE
To avoid damaging the mechanism,
do not attempt to turn beyond the
maximum or minimum settings.
Spring preload
Spring preload adjustment should be
made by a Yamaha dealer, since this
service requires special tools and tech-
nical skills. The specified settings are
listed below.
The spring preload setting is deter-
mined by measuring distance A, shown
in the illustration. The shorter the dis-
tance A is, the higher the spring pre-
load; the longer distance A is, the lower
3-16
EAU52892 the spring preload.
1. Distance A
ECA10101
Spring preload:
Minimum (soft):
Distance A = 238.5 mm (9.39 in)
Standard:
Distance A = 222 mm (8.74 in)
Maximum (hard):
Distance A = 222 mm (8.74 in)
Rebound damping force
To increase the rebound damping force
and thereby harden the rebound damp-
ing, turn the adjusting screw in direction
(a). To decrease the rebound damping
force and thereby soften the rebound
damping, turn the adjusting screw in di-
rection (b).
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