Yamaha YFM250R-W Owner's Manual page 41

2. Turn the adjusting nut in direction (a) to in-
crease the spring preload and thereby harden
the suspension, and in direction (b) to de-
crease the spring preload and thereby soften
the suspension.
1. Locknut
2. Spring preload adjusting nut
TIP
G A special wrench can be obtained at a Yamaha
dealer to make this adjustment.
G
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
2
(a)
(b)
1
spring preload. With each complete turn of the
adjusting nut, distance A is changed by 1.5 mm
(0.06 in).
1. Distance A
Spring preload setting:
Minimum (hard):
Distance A = 220.0 mm (8.66 in)
Standard:
Distance A = 228.0 mm (8.98 in)
Maximum (soft):
Distance A = 232.0 mm (9.13 in)
3. Tighten the locknut to the specified torque.
4-23
4
1