Yamaha YFM350RB Owner's Manual page 40

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
spring preload. With each complete turn of the
4
adjusting nut, distance A is changed by 1.5 mm
(0.06 in).
1. Special wrench
Spring preload setting:
Minimum (soft):
Distance A = 233.5 mm (9.19 in)
Standard:
Distance A = 228.5 mm (9.00 in)
Maximum (hard):
Distance A = 218.5 mm (8.60 in)
1. Distance A
3. Tighten the locknut to the specified torque.
NOTICE: Always tighten the locknut
against the adjusting nut, and then tighten
it to the specified torque.
4-15
1
[ECB00081]