Rear Wheel Wobbling; Shock Absorber Too Soft; Braking Noise; Poor Brake Performance - Sym Jet 4 125 Manual

15. REAR WHEEL/REAR SHOCK ABSORBER
PRECAUTIONS IN OPERATION
General Information
As for the wheel removal, service, and installation procedures, please refer to the service
manual of high speed tire.
Specification
Wheel wobbling
Thickness of rear brake lining
Torque values:
Rear axle nut
Rear shock absorber upper mount bolt
Rear shock absorber lower mount bolt
Exhaust muffler connection nut
Exhaust muffler connection bolt
TROUBLE DIAGNOSIS

Rear wheel wobbling

l bend wheel rim
l poor tire
l loosen wheel shaft

Shock absorber too soft

l insufficient shock
absorber spring force
15-2
Items
Radial
Axial

Braking Noise

l worn brake lining
l brake drum deformation
l improperly brake panel
installation
l unparalleled brake drum
or wheel unparallel.
Standard
-
-
4.0
11.0~13.0kgf-m
3.5~4.5kgf-m
2.4~3.0kgf-m
1.0~1.4kgf-m
3.0~3.6kgf-m

Poor brake performance

l Poor brake adjustment
l contaminated brake
lining
l worn brake lining
l greased brake drum
l contaminated and
seized brake cable
l improperly installation of
brake cable
SYM
Unit: mm
Limit
2.0
2.0
2.0