Sym Jet Sport X R50, Service Manual

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13. Steering / Front Wheel / Front Cushion
13-2
Maintenance Information
Specification
Item Standard value (mm) Limit (mm)
Shaft bending
─
─ ─
─
0.2 (0.01 in)
Radial
─ ─ ─ ─
2.0 (0.08 in)
Rim wobbling
Axial
─
─ ─
─
2.0 (0.08 in)
Torque Value
Steering handle nut 4.0~4.5kgf-m
Brake master cylinder mounting bolts 1.0~1.4kgf-m
Front wheel axle
5.0~7.0kgf-m
Brake disc bolt 4.0~4.5kgf-m
Front cushion mounting nut 2.4~3.0kgf-m
Front brake caliper bolt 3.1~3.5kgf-m
Steering stem mounting nut 1.0~1.2kgf-m
Top cone race 0.2~0.3kgf-m
Special Tools
Inner bearing puller SYM-6204022
Bearing driver 6201
Troubleshooting
Hard To Steer
1. The steering shaft bolt is too tight.
2. The steering shaft bearing are damaged
3. The ball and the top cone of the steering
shaft are damaged.
4. Insufficient tire pressure.
The Steering Handle Is Tilted
1. Uneven arrangement of the front cushions.
2. The front fork is bent.
3. The front wheel axle is bent.
The Front Wheel Wobbling
1. The rim is bent.
2. The wheel axle nut is not tightened
improperly
3. Bend wheel rim
4. Side-worn or poor tire.
5. The bearing play of the wheel axle is too
large.
Soft Cushion
1. Weak front cushion spring
Noise In Front Cushion
1. Cushion outer tube noise
2. The joint of the cushion gets loose.
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