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PA12B
Sym PA12B User Manual
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6. Engine Removal
Remove the PCV tube.
6-3
Remove the
AICV tube.
Loosen the choke cable holder screw
(screwX1), and remove the choke cable.
Disassemble the carburetor top cover by
turning
counterclockwise. Then
remove
the
top
cover,
throttle
cable,
and
the
throttle
body.
PCV tube
AICV tube
Choke cable
hl
d
Top cover
Throttle body
91
93
Table of Contents
Table of Contents
4
General Information
3
Table of Contents
4
General Safety
7
Service Precautions
8
Specifications
14
Torque Values
16
Trouble Diagnosis
18
Lubrication Points
24
2. Maintenance Information
26
Maintenance Information
26
Periodical Maintenance Schedule
27
Lubrication System
28
Fuel System
30
Air Filter
31
Throttle Operation
31
PCV System
32
Valve Clearance Adjustment
32
Idle Adjustment
34
Ignition System
35
Ignition Timing
35
Spark Plug
35
Cylinder Compression Test
36
Cam Chain Adjustment
36
Clutch Adjustment
37
Drive Chain Adjustment
38
Steering Mechanism
39
Suspension System
40
Disk Brake System
41
Drum Brake System
43
Tire
44
Battery
45
Headlight Adjustment
46
Brake Switch
46
Nuts, Bolts Tightness
46
Special Tools
47
3. Fuel System
50
Precautions in Operation
51
Troubleshooting
52
Carburetor Removal
53
Float Chamber/ Jet Set
55
Throttle Valve
55
Carburetor Installation
57
Air Cut-Off Valve
58
Idle Speed Adjustment
59
Fuel Tank
60
Air Cleaner
62
4 、 Lubrication / Clutch / Transmission
64
Lubrication / Clutch / Transmission
64
Mechanism Diagram-Clutch / Transmission
65
Troubleshooting
67
Engine Oil
68
Engine Oil Strainer Cleaning
68
Oil Pump Removal / Inspection
69
Oil Pump Assembly / Installation
72
Clutch Disassembly
75
Clutch Inspection
76
Clutch Installation
77
Gear Shift Linkage Mechanism
79
AC Generator / Starter Clutch
82
Engine Removal
90
7. Cylinder Head / Valve
98
Cylinder Head / Valve
98
Precautions in Operation
99
Troubleshooting
100
Cylinder Head
101
Camshaft
103
Valve Rocker Arm
103
Valve
104
Valve Seat Inspection and Refacing
108
Cylinder Head Assembly
111
Cylinder Head Installation
112
Valve Clearance Adjustment
114
8. Cylinder / Piston
116
Cylinder / Piston
116
Precautions in Operation
117
Troubleshooting
117
Cylinder Removal / Inspection
118
Piston Removal/ Inspection
120
Piston Rings Installation
123
Piston Installation
124
Cylinder Installation
125
9. Crankshaft / Crankcase / Transmission / Kick Starter
126
Precautions in Operation
128
Troubleshooting
129
Crankcase Disassembly
130
Crankshaft Inspection
131
Transmission Disassembly
132
Transmission Inspection
133
Kick Starter Disassembly
135
Crankcase Inspection
136
Crankcase Assembly
137
10. Brake System
142
Brake System
142
Mechanism Diagram-Drum Brake
143
Precautions in Operation
144
Troubleshooting
145
Disk Brake System Inspection
146
Brake Caliper
148
Brake Disk
150
Brake Master Cylinder
150
Brake Drum
153
Brake Shoe
153
Brake Panel
154
11. Steering / Front Wheel / Front Fork
156
Steering / Front Wheel / Front Fork
156
Precautions in Operation
157
Troubleshooting
158
Headlight
159
Meter
160
Steering Handlebar
162
Front Wheel
166
Front Fork
170
Steering Stem
175
12. Rear Wheel / Rear Cushion / Swingarm
178
Rear Wheel / Rear Cushion / Swingarm
178
Precautions in Operation
179
Rear Wheel
180
Drive Chain / Sprocket / Flange 12-8 Rear Cushion
186
Swingarm
191
Rear Brake Pedal
193
13. Electrical System
194
Electrical System
194
Precautions in Operation
195
Technical Specification
196
Troubleshooting
197
Charging System
198
Ignition System
204
Starting System
207
Light System
209
Switch / Horn
215
Emission Control System
220
Wiring Diagram
230
4
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Sym PA12B Specifications
General
Brand
Sym
Model
PA12B
Category
Motorcycle
Language
English
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