Zhejiang Qianjiang Motorcycle RKV 200 Service Manual Page 129
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129
XI. Carburetor
Service Data--------------------------11. 1
Fault Diagnosis----------------------11. 2
Disassembly of carburetor---------11. 3
Installation of carburetor-----------11. 4
11. 1 Service Data
Function of carburetor: It is a key part of engine fuel supply system, and its operation status has
a direct bearing on operation stability, power and economic indexes of the engine. It atomizes a
certain amount of gasoline into fine oil droplets and mixes these droplets with different amounts of
air evenly, thus forming combustible mixed gas mist with different density depending on the needs
of engine under different operating conditions and promptly supplying the gas to engine, ensuring
continuous and normal operation of engine.
Precautions
The gasoline is combustible and explosive, therefore operation must be conducted in a
well-ventilated place.
After the carburetor is disassembled, take necessary measures to prevent ingress of any foreign
matter.
If a carburetor has not been used for one month, oil in the float chamber shall be released to prevent
idling jet from being clogged as a consequence of gasoline degradation.
Table of Standard Items of Reference Items
Item
Standard value
Main metering jet
262
Idling metering jet
70
Oil needle
C03-0
11. 2 Fault Diagnosis
Poor startup Difficult to startup, flaming out after
startup or unstable during idling
No fuel in carburetor Clogged carburetor
Gasoline filter clogged Too thick or thin mixed gas
Gasoline tube clogged Secondary air entering into intake system
- Content 2
- Preface 5
- Service Data 6
- Maintenance Regulations 7
- Identification of motorcycle 10
- Special Tools 11
- 2．Toes for chassis overhaul 14
- Specifications (QJ200-2A) 17
- Fault Diagnosis 19
- Diagnosis procedures 19
- Basic Data 47
- Specifications 48
- Engine oil/Oil filter 50
- Spark plug 52
- Carburetor 54
- Ignition timing 54
- Engine oil 55
- Engine oil replacement 56
- Drive chain slackness 56
- Front brake clearance 57
- Brake pedal clearance 57
- Headlamp 58
- Front/rear suspension 59
- Bolt/nut/fasteners 59
- Wheel rim/tire 60
- Tire Specifications 60
- Charging system 62
- Ⅰ Battery/Charging System 63
- 1.2 Fault Diagnosis 64
- 1.3 Battery 65
- 1.3.1 Battery Removal 65
- 1.3.2 Charging 65
- 1.4 Charging system 66
- 1.4.1 Short circuit test 66
- 67
- 1.6 Magneto charging coil 67
- Inspection 67
- Ignition System 70
- Ⅱ Ignition System 71
- 2.2 Fault diagnosis 72
- 2.3 Ignition system 73
- 2.3.3 Trigger 74
- 2.4 CDI Assembly 75
- 2.4.1 System Inspection 75
- 2.5 Ignition coil 75
- 2.6 Trigger 76
- Starting System 77
- Ⅲ Starting System 78
- 3.2 Fault Diagnosis 79
- 3.3 Starter Motor 79
- 3.3.4 Assembly 80
- 3.4 Starter Relay 81
- Bulbs/Switches/Instruments 82
- 4.2 Fault Diagnosis 84
- 4.5.1 Removal 85
- 4.5.2 Installation 85
- 4.6 Instrument 86
- 4.7 Main switch 86
- 4.8 Electric horn 87
- 4.9 Handle switch 87
- Front Hydraulic Brake 89
- Rear Hydraulic Brake 90
- Ⅴ Braking System 91
- 5.2 Fault Diagnosis 92
- 5.3 Front Hydraulic Brake 92
- 5.3.2 Inspection 93
- 5.3.3 Installation 93
- 5.4 Rear Hydraulic Brake 94
- 5.4.3 Installation 95
- Exterior 96
- Front wheel 98
- Steering handlebar 99
- Front fork 100
- 7. 1 Service Data 101
- 7. 2 Fault Diagnosis 101
- 7. 3 Front wheel 102
- 7. 3. 2 Check 103
- 7. 3. 3 Replacing bearing 103
- 7. 4 Steering handlebar 104
- 7. 5 Front fork 105
- 7. 5. 3 Installation 106
- Rear wheel 107
- Rear shock absorber 108
- Rear swing arm 109
- Chain drive assembly 110
- 8. 1 Service Data 111
- 8. 2Fault Diagnosis 111
- 8. 3 Rear wheel 112
- QJ200-2A Rear wheel 113
- 8. 5 Chain drive assembly 115
- 8. 5. 2． Check 116
- 8. 5. 4．Installation 117
- Seat cushion 118
- Fuel tank 119
- 9. 3 Fuel tank/Seat cushion 121
- 9. 3. 1 Disassembly 121
- 9. 3. 1 Installation 121
- X. Lubricating system 123
- 10. 2Fault Diagnosis 124
- 10. 3 Engine oil pump 125
- 10. 3. 1 Disassembly 125
- 10. 3. 2 Installation 127
- XI. Carburetor 129
- XII Cylinder head/Valve 133
- 12. 1 Service Data 134
- 12. 2 Fault Diagnosis 134
- 12. 3 Cylinder head 135
- Valve locking clamp 136
- Micrometer 136
- 12. 4 Inspection 137
- Reamer 140
- 12. 7 Installation 142
- 13. 2Fault Diagnosis 146
- 13. 3 Cylinder block 146
- 13. 4 Piston 147
- XIV Crankcase 150
- 14. 1 Service Data 151
- 14. 3 Crankcase 152
- 14.4 Clutch 154
- Shell components 155
- Center bearing support 155
- Pressure plate 155
- Plug gauge 156
- Driven friction disc 156
- Thickness 156
- Free length 156
- Needle roller bearing 157
- Principal shaft assembly 158
- Vice shaft assembly 158
- 14.4 Gearshift Mechanism 159
- Measuring point 161
- Point of measuring the 161
- Vernier caliper 163
- Width of the lock slot 163
- 14.6 Gear box assembly 164
- Wheel gear surface 165
- Drive claw 165
- ⅩⅦ Emission Control System 168
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