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X'PRO RV125
Sym X'PRO RV125 User Manual
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6. Engine Removal
6-5
Loosen the mounting screw of left crankcase duct,
and then remove the duct.
.
Remove the mounting bolts (2 bolts) of air
cleaner.
Remove the lower mounting bolt of left shock
absorber.
Check if engine mounting bracket bushing and
cushion rubber for damage.
Bush
Bolt
×
2
Bolt
×1
Screw
To this chapter contents
117
119
Table of Contents
1. General Information
6
Table of Contents
6
General Safety
7
Service Precautions
8
Specifications
10
Torque Values
14
Cables and Harness Routing
16
Troubleshooting-Carburetor Model
17
Troubleshooting-Efi Model
21
Lubrication Points
25
2. Maintenance Information
26
Periodical Maintenance Schedule
27
Maintenance Information
27
Fuel Lines
28
Throttle Operation
28
Air Cleaner
29
Spark Plug
29
Valve Clearance
30
Ignition System
31
Cylinder Compression Pressure
32
Drive Belt
32
Brake Fluid
33
Brake Hose
33
Brake System (Front/Rear Disk Brake)
33
Filling out Brake Fluid
33
Add Brake Fluid
34
Air Bleed Operation
34
Brake Lining
34
Brake Light Switch
35
Clutch Weight
35
Headlight Beam Distance
35
Front / Rear Cushion
36
Nut, Bolts Tightness
36
Side Stand
36
Wheel / Tire
37
3. Lubrication System
38
Lubrication System
38
Precautions in Operation
39
Troubleshooting
39
Engine Oil
40
Engine Oil Strainer Clean
40
Oil Pump Disassembly
41
Oil Pump Removal
41
Oil Pump Inspection
42
Oil Pump Reassembly
42
Oil Pump Installation
43
Gear Oil
44
4. Fuel System
46
Fuel System
47
Precautions in Operation
47
Trouble Diagnosis
48
Air Cut-Off Valve
49
Auto By-Starter
50
Carburetor Removal
51
Vacuum Chamber
51
Float Chamber
53
Installation of Carburetor
54
Adjustment of Pilot Screw
55
Fuel Tank
56
Air Cleaner
57
5. Fuel Injection System
58
Fuel Injection System
58
Efi System Introduction
59
Efi System Components
60
Efi System Location
61
Efi System Component Description
62
Fuel Pump
63
Ignition Coil
63
Ect Sensor
64
Efi System Circuit
65
Precautions in Operation
66
Troubleshooting
67
Procedure
68
Fuel Lines
72
Ignition System
73
Crankshaft Position Sensor
74
Engine Temperature Sensor / T-Map Sensor
75
Air By-Pass Valve
76
Fuel Injector
76
Fuel Pump
76
Fuel Unit
77
Fuel Tank
80
Fuel Tank Removal
80
Air Cleaner
81
Efi Troubleshooting & Solution
82
Replacement Procedure
83
6. Engine Removal
114
Engine Removal-Carburetor Model
115
Engine Removal-Efi Model
119
Engine Hanger
124
Engine Hanger Rubber Bush
125
Engine Installation
126
Engine Removal
126
7. Cylinder Head / Valve
128
Cylinder Head / Valve
128
Precautions in Operation
129
Cylinder Head/Valve
129
Cylinder Head Removal
131
Cylinder Head Disassembly
133
Inspection
134
Valve Seat Inspection
136
Cylinder Head Reassembly
138
Cylinder Head Installation
139
8. Cylinder / Piston
142
Cylinder / Piston
142
Precautions in Operation
143
Troubleshooting
143
Cylinder Removal
144
Piston Removal
145
Piston Ring Installation
147
Piston Installation
148
Cylinder Installation
148
9. V-Belt Drive System
150
V-Belt Drive System
150
Precautions in Operation
151
Troubleshooting
151
Left Crankcase Cover
152
Drive Belt
154
Drive Face
155
Clutch Outer / Driven Pulley
159
10. Final Drive Mechanism
164
Final Drive Mechanism
164
Precautions in Operation
165
Troubleshooting
165
Final Drive Mechanism Inspection
166
Bearing Replacement
167
Final Drive Mechanism Reassembly
169
11. AC. Generator / Start Clutch
172
Precautions in Operation
173
AC. Generator Removal
174
Flywheel Removal
174
Right Crankcase Cover Removal
174
Start Clutch
175
AC. Generator Installation
178
Flywheel Installation
178
Right Crankcase Cover Installation
178
12. Crankshaft / Crankcase
180
Crankshaft / Crankcase
180
Troubleshooting
181
Service Data
181
Crankcase Disassembly
182
Crankshaft Inspection
184
Crankcase Assembly
185
13. Cooling System
188
Cooling System
188
General Information
189
Technical Specification
189
Troubleshooting
190
Coolant Change
191
System Test
191
Radiator
192
Water Pump
193
Temperature Sensor
197
Body Cover
197
Thermostat
198
14. Body Cover
200
Body Cover
200
Maintenance
201
Steering Handle Cover
202
Front Cover
203
Wind Screen
203
Meter Cover
204
Front under Spoiler
205
Side Cover
205
Luggage Box
206
Rear Carrier
206
Body Covers / Rear Fender
207
Center Cover
207
Floor Panel
208
Under Cover
208
Front Fender
209
Inner Cover
209
Rear Fender
209
15. Brake System
210
Rear Brake System Diagram
211
Maintenance Description
212
Troubleshooting
213
Hydraulic Disc Brake
214
Air Bleed
215
Brake Caliper
215
Brake Disk Inspection
216
Brake Master Cylinder
216
Master Cylinder Inspection
217
15. Brake System Notes
220
Steering / Front Wheel / Front Cushion
220
Precautions in Operation
221
Troubleshooting
221
Steering Handlebar
222
Front Wheel
225
Front Cushion
229
Front Fork / Steering Stem
230
17. Muffler / Rear Wheel / Rear Cushion
232
Muffler / Rear Wheel / Rear Cushion
232
Precautions in Operation
233
Troubleshooting
233
Muffler
234
Rear Wheel
234
Rear Cushion
236
Homepage 18. Electrical System
238
Electrical System
238
Battery
239
Charging System
239
Ignition System
239
Voltage Inspection
241
Precautions in Operation
239
Starting System
247
Starter Motor Removal
248
Starter Motor Installation
248
Meter
249
Light / Bulb
250
Switch / Horn
255
Fuel Unit
257
Thermo Switch
258
Thermo Guage
259
Special Tools List
260
19. Special Tools
261
Crank Case / Transmission Oil Seal Driver
264
AC.G. Flywheel Puller
268
Valve Cotter Remover / Install Driver
268
Crank Case Bush Puller
270
Wiring Diagram
272
Thermo Unit
259
4
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Sym X'PRO RV125 Specifications
General
Brand
Sym
Model
X'PRO RV125
Category
Scooter
Language
English
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