2012 Yamaha Motorsports Apex SE Owners Manual - Page 35
2012 Yamaha Motorsports Apex SE Manual
Page 35 highlights
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. 29