Yamaha YFM250R-W Owner's Manual page 34

EWB00410
WARNING
These shock absorber assemblies contain
highly pressurized nitrogen gas. Read and un-
derstand the following information before han-
dling the shock absorber assemblies.
G Do not tamper with or attempt to open the
cylinder assemblies.
4
G
Do not subject the shock absorber assem-
blies to an open flame or other high heat
source. This may cause the unit to explode
due to excessive gas pressure.
G
Do not deform or damage the cylinders in
any way. Cylinder damage will result in poor
damping performance.
G Do not dispose of a damaged or worn out
shock absorber assembly yourself. Take the
shock absorber assembly to a Yamaha deal-
er for any service.
Spring preload
1. Loosen the locknut.
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.
(a)
1. Spring preload adjusting nut
2. Locknut
3. Special wrench
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
4-16
2
1
(b)
3