Control functions
34
2.
To increase weight transfer, turn the ad-
justing nut in direction (a), and to de-
crease weight transfer, turn it in direction
(b).
WARNING! Never adjust the con-
trol rods beyond the maximum set-
ting, indicated by red paint; otherwise,
they could be damaged, which could
lead to an accident or injury.
[EWS00173]
3.
Tighten the locknut while holding the ad-
justing nut in place.
NOTICE:
Always
tighten the locknut against the adjust-
ing nut, and then tighten the locknut to
the specified torque.
[ECS00860]
ESU13820
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 regulates the inner diameter of the
exhaust pipe. The EXUP system valve is con-
stantly adjusted in accordance with the en-
gine speed by a computer-controlled
servomotor.
NOTICE
ECS01020
The EXUP system has been set and exten-
sively tested at the Yamaha factory.
Changing these settings without sufficient
technical knowledge may result in poor
performance of or damage to the engine.
1. Locknut
2. Control rod adjusting nut
1. Red paint area
2. Adjustable range
3. Standard position
Locknut tightening torque:
25 Nm (2.5 m·kgf, 18 ft·lbf)
1
3
2
U8HG10E0.book Page 34 Tuesday, May 18, 2010 5:39 PM
