2011 Yamaha Motorsports Apex Owners Manual - Page 34

2011 Yamaha Motorsports Apex Manual

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Control functions ESU10975 Adjusting the spring preload of the center shock absorber and the rear torsion springs (RX10PXT), or the rear shock absorber (RX10P) The spring preload can be adjusted by turning the adjusting nut on the center shock absorber and the adjusters on the rear torsion springs (RX10PXT), or adjusting ring (RX10P) on the rear shock absorber. Adjust the spring preload as follows. Center shock absorber (RX10PXT) 1. Loosen the locknut. 2. To increase the spring preload and thereby harden the suspension, turn the adjusting nut in direction (a). To decrease the spring preload and thereby soften the suspension, turn the adjusting nut in direction (b). 1. Bleed valve button Air pressure range: 448-1034 kPa (4.5-10.3 kgf/cm², 65-150 psi) Recommended air pressure: 586 kPa (5.9 kgf/cm², 85 psi) TIP To allow pressure to escape from the pump and the shock absorber, push the button halfway down and hold it. To allow only a small amount of pressure to escape, push the button all the way down and quickly release it. 6. Push the hose connector lock lever down, and then remove the hose connector from the air valve. 1 2 (a) (b) 1. Spring preload adjusting nut 2. Distance A 3. Locknut 3 TIP When removing the connector, the sound of air escaping may be heard, but this is from the pump hose, not the shock absorber. 7. Install the air valve cap. TIP If the front shock absorber bottoms too easily or rolls too much during cornering, increase the air pressure by 34 kPa (0.3 kgf/cm², 5 psi). If the shock absorber is too firm and you want a more compliant ride, decrease the air pressure by 34 kPa (0.3 kgf/cm², 5 psi). TIP The spring preload setting is determined by measuring distance A, shown in the illustration. The longer distance A is, the higher the spring preload; the shorter distance A is, the lower the spring preload. 28

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Control functions
28
TIP
To allow pressure to escape from the pump
and the shock absorber, push the button half-
way down and hold it. To allow only a small
amount of pressure to escape, push the but-
ton all the way down and quickly release it.
6.
Push the hose connector lock lever
down, and then remove the hose connec-
tor from the air valve.
TIP
When removing the connector, the sound of
air escaping may be heard, but this is from the
pump hose, not the shock absorber.
7.
Install the air valve cap.
TIP
If the front shock absorber bottoms too easily
or rolls too much during cornering, increase
the air pressure by 34 kPa (0.3 kgf/cm², 5 psi).
If the shock absorber is too firm and you want
a more compliant ride, decrease the air pres-
sure by 34 kPa (0.3 kgf/cm², 5 psi).
ESU10975
Adjusting the spring preload of the
center shock absorber and the rear
torsion springs (RX10PXT), or the rear
shock absorber (RX10P)
The spring preload can be adjusted by turning
the adjusting nut on the center shock absorb-
er and the adjusters on the rear torsion
springs
(RX10PXT),
or
adjusting
ring
(RX10P) on the rear shock absorber. Adjust
the spring preload as follows.
Center shock absorber (RX10PXT)
1.
Loosen the locknut.
2.
To increase the spring preload and there-
by harden the suspension, turn the ad-
justing nut in direction (a). To decrease
the spring preload and thereby soften the
suspension, turn the adjusting nut in di-
rection (b).
TIP
The spring preload setting is determined by
measuring distance A, shown in the illustra-
tion. The longer distance A is, the higher the
spring preload; the shorter distance A is, the
lower the spring preload.
1.
Bleed valve button
Air pressure range:
448–1034 kPa (4.5–10.3 kgf/cm²,
65–150 psi)
Recommended air pressure:
586 kPa (5.9 kgf/cm², 85 psi)
1.
Spring preload adjusting nut
2.
Distance A
3. Locknut
(a)
(b)
2
1
3