Sym DD 50 Service Manual page 135

14. REAR WHEEL/SUSPENSION
Maintenance Information
Specification
Item
Rear wheel rim run out
Torque Value
Rear shock absorber upper mounting bolt: 4.0kgf-m
Rear shock absorber lower mounting bolt: 2.7kgf-m
Rear wheel nut: 11.0kgf-m
Rear wheel hub: 2.5kgf-m
Exhaust muffler nut: 1.2kgf-m
Exhaust muffler bolt: 3.3kgf-m
Troubleshooting
Rear wheel wobbling
1. Bend wheel rim
2. Poor tire
3. Loosen wheel shaft
Shock absorber too soft
1. Insufficient shock absorber spring force
Poor brake performance
1. Poor brake adjustment
2. Contaminated brake lining
3. Worn brake lining cam
4. Worn brake cam lever
5. Worn brake drum
6. Improper installation of brake arm gear set.
14-2
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Standard value (mm)
-
Limit (mm)
2.0 (0.08 in)