2009 Yamaha Motorsports FX Nytro MTX Owners Manual - Page 31
2009 Yamaha Motorsports FX Nytro MTX Manual
Page 31 highlights
Control functions Center shock absorber 3. Tighten the locknut to the specified torque. NOTICE: Always tighten the locknut against the adjusting nut, and then tighten the locknut to the specified torque. [ECS00860] Tightening torque: Locknut: 42 Nm (4.2 m·kgf, 30 ft·lbf) Rear torsion springs EWS00750 1 2 (a) (b) 1. Spring preload adjusting nut 2. Distance A 3. Locknut 3 WARNING The left and right spring preloads must be adjusted to the same setting. Uneven settings can cause poor handling and loss of stability. 1. 2. Loosen the locknut. 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). (a) (b) 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. Spring preload setting*: Minimum (soft): FX10 92.6 mm (3.65 in) FX10RTR 74.4 mm (2.93 in) FX10MTR 104.1 mm (4.10 in) Standard: FX10 101.6 mm (4.00 in) FX10RTR 84.4 mm (3.32 in) FX10MTR 122.1 mm (4.81 in) Maximum (hard): FX10 108.6 mm (4.28 in) FX10RTR 91.4 mm (3.60 in) FX10MTR 131.1 mm (5.16 in) * Distance A changes 1.5 mm (0.06 in) with each full turn of the adjusting nut. 1 1. Spring preload adjuster To increase the spring preload and thereby harden the suspension, turn the adjuster in direction (a). To decrease the spring preload and thereby soften the suspension, turn the adjuster in direction (b). Spring preload setting: Minimum (soft): S Standard: M Maximum (hard): H 25