Yamaha Raptor YFM7RB Owner's Manual - page 39
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4
or turns of each damping force adjusting mecha-
nism and to modify the specifications as neces-
sary.
Spring preload
1. Loosen the locknut.
2. Turn the spring preload adjusting nut in direc-
tion (a) to increase the spring preload and
thereby harden the suspension, and in direc-
tion (b) to decrease the spring preload and
thereby soften the suspension.
TIP
●
A special wrench can be obtained at a Yamaha
dealer to make this adjustment.
●
The spring preload setting is determined by
measuring distance A, shown in the illustration.
The shorter distance A is, the higher the spring
preload; the longer distance A is, the lower the
spring preload. With each complete turn of the
adjusting nut, distance A is changed by 1.5 mm
(0.06 in).
1. Spring preload adjusting nut
2. Locknut
3. Special wrench
1
(b)
(a)
2
3
Spring preload setting:
Minimum (soft):
Distance A = 243.0 mm (9.57 in)
Standard:
Distance A = 233.0 mm (9.17 in)
Maximum (hard):
Distance A = 228.0 mm (8.98 in)
U1AS12E0.book Page 20 Wednesday, February 2, 2011 11:55 AM