Exup System - Yamaha WR25R 2008 Owner's Manual

INSTRUMENT AND CONTROL FUNCTIONS
the adjusting screw in direction (b).
(b)
1
2
3
1. Compression damping force adjusting
4
screw
5 Compression damping setting:
Minimum (soft):
12 click(s) in direction (b)*
6
Standard:
10 click(s) in direction (b)*
Maximum (hard):
7
1 click(s) in direction (b)*
* With the adjusting screw fully turned
in direction (a)
8
TIP
9
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.
(a)
WARNING
This shock absorber assembly con-
1
tains highly pressurized nitrogen
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.

EXUP system

This model is equipped with Yamaha's
EWA10221
EXUP (EXhaust Ultimate Power valve)
system. This system boosts engine
power by means of a valve that regu-
lates the diameter of the exhaust pipe.
The EXUP system valve is constantly
adjusted in accordance with the engine
speed by a computer-controlled servo-
motor.
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
EAU41940
ECA15610