Exup System - Yamaha 2011 WR250X Owner's Manual

(a)
(b)
1. Compression damping force adjusting screw
Compression damping setting:
Minimum (soft):
12 click(s) in direction (b)*
Standard:
7 click(s) in direction (b)*
Maximum (hard):
1 click(s) in direction (b)*
* With the adjusting screw fully turned
in direction (a)
TIP
To obtain a precise adjustment, it is ad-
visable to check the actual total number
of clicks or turns of each damping force
adjusting mechanism. This adjustment
range may not exactly match the spec-
ifications listed due to small differences
in production.
INSTRUMENT AND CONTROL FUNCTIONS
WARNING
This shock absorber assembly con-
tains highly pressurized nitrogen
1
gas. Read and understand the fol-
lowing information before handling
the shock absorber assembly.
G Do not tamper with or attempt to
open the cylinder assembly.
G
Do not subject the shock ab-
sorber assembly to an open
flame or other high heat source.
This may cause the unit to ex-
plode due to excessive gas
pressure.
G
Do not deform or damage the
cylinder in any way. Cylinder
damage will result in poor
damping performance.
G Do not dispose of a damaged or
worn-out shock absorber as-
sembly yourself. Take the shock
absorber assembly to a Yamaha
dealer for any service.
EWA10221

EXUP system

This model is equipped with Yamaha's
EXUP (EXhaust Ultimate Power valve)
system. This system boosts engine
power by means of a valve that regu-
lates the inner diameter of the exhaust
pipe. The EXUP system valve is con-
stantly adjusted in accordance with the
engine speed by a computer-controlled
servomotor.
NOTICE
The EXUP system has been set and
extensively tested at the Yamaha
factory. Changing these settings
without sufficient technical knowl-
edge may result in poor perfor-
mance of or damage to the engine.
4-18
EAU41941
4
ECA15610