Sym Mio 50 User Manual

8. V-Belt Drive System / Kick Starter
8-2
Operational Precautions
General Information
y Movable drive face, clutch, and driven pulley can be serviced on the motorcycle.
y Drive belt and driven pulley surface must be free of grease.
Specification Unit: mm
HU10U/W HU05U
Item Standard value Limit Standard value Limit
Drive belt width
17.800~18.200 17.200 17.800~18.200 17.200
ID of movable drive face
23.989~24.052 24.060 23.964~23.985 24.015
OD of drive face boss
23.960~23.974 23.940 23.910~23.926 23.890
OD of rolle
r
15.920~16.080 15.400 15.920~16.080 15.400
ID of clutch oute
r
112.000~122.200 112.500 107.000~107.200 107.500
Thickness of clutch linin
g
2.000 1.500 2.00 1.500
Free len
g
th of driven
p
ulle
y
s
p
rin
g
──
156.000
──
87.900
OD of driven
p
ulle
y
33.965~33.985 33.940 33.965~33.985 33.940
ID of slidin
g
driven
p
ulle
y
34.000~34.025 34.060 34.000~34.025 34.060
Torque value:
Movable drive face nut: 5.0~6.0kgf-m
Clutch outer nut: 5.0~6.0kgf-m
Driven pulley nut: 5.0~6.0kgf-m
Special Service Tools
Clutch spring compressor SYM-2301000
Bearing puller (inner type) SYM-6204002
Clutch mounting nut wrench SYM-9020200
Universal fixture SYM-2210100
Trouble Diagnosis
Engine can be started but motorcycle can
not be moved
1. Worn drive Belt
2. Worn ramp plate
3. Worn or damaged clutch lining
4. Broken driven pulley
Shudder or misfire when driving
1. Broken clutch lining
2. Worn clutch lining
Insufficient horsepower or poor high
speed performance
1. Worn drive belt
2. Insufficient spring capacity of driven pulley
3. Worn roller
4. Driven pulley operation un-smoothly
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Sym Mio 50 Specifications

General

Brand	Sym
Model	Mio 50
Category	Scooter
Language	English