Instrument and control functions
5-45
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thereby harden the suspension,
turn the adjusting ring in direction
(a). To decrease the spring pre-
load and thereby soften the sus-
pension, turn the adjusting ring in
direction (b).
The spring preload setting is deter-
mined by measuring distance A.
The longer distance A is, the high-
er the spring preload; the shorter
distance A is, the lower the spring
preload.
Use the special wrench in the
owner’s tool kit to make the ad-
justment.
3. Tighten the locknut to the specified
torque. NOTICE: Always tighten
the locknut against the adjust-
ing ring, and then tighten the
locknut to the specified
torque.
[ECA22760]
EAU67050
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 controls
exhaust flow within the exhaust cham-
ber.
ECA15611
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.
1. Spring preload adjusting ring
2. Locknut
1
(a)
(b)
2
1. Distance A
Spring preload:
Minimum (soft):
Distance A = 0 mm (0.00 in)
Standard:
Distance A = 4 mm (0.16 in)
Maximum (hard):
Distance A = 9 mm (0.35 in)
Tightening torque:
Locknut:
25 Nm (2.5 m·kgf, 18 ft·lbf)
1
2CR-9-21.book 45 ページ ２０１５年９月２日 水曜日 午後２時２５分
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