Generic TR 125 - Inspection and Maintenance of EFI System

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- 133 -

Inspection and Maintenance of EFI System

QJ125GY-16A EFI circuit diagram

Table of Contents

Default Chapter3
- Table of Contents3
- Preface6
- Preparatory Data7
- Special Tool7
- Inspection/Adjustment20
Check and Maintenance of Body37
1 I Braking System39
- Maintenance Instruction39
- Rear Drum Brake39
- Fault Diagnosis40
- Front Hydraulic Brake41
- Back Liquid Brake43
2 Vehicle Housing47
3 Front Wheel/Front Suspension50
- Preparatory Data50
- Fault Diagnosis50
- Front Wheel52
- Bearing Replacement53
- Direction Handle54
- Front Fork54
- Preparatory Data59
- Chain Drive Assembly59
4 IV Rear Wheel/Rear Suspension59
- Fault Diagnosis60
- Rear Shock Absorber62
- Rear Swing Arm63
- Drive Chain64
5 Storage Battery/Charging System67
- Preparatory Data67
- Fault Diagnosis68
- Tightening Torque68
- Storage Battery69
- Battery Removal69
- Charging System70
- Voltage-Current Regulator71
- Alternator Charging Coil72
- Alternator Light Coil72
- Disassembly of Alternator73
6 Ignition System76
- Preparatory Data76
- Fault Diagnosis76
- Ignition System Inspection78
- CDI Assembly80
- Ignition Coil80
- System Inspection80
- Trigger81
7 Starting System83
- Preparatory Data83
- Fault Diagnosis84
- Starting Motor84
- Starting Relay86
8 Bulbs/Switches/Instruments87
- Preparatory Data87
- Fault Diagnosis87
- Headlamp Bulb Replacement88
- Front Turn Signal Lamp Bulb Replacement89
- Taillight/License Plate Lamp/Rear Turn-Lamp Bulb Replacement89
- Taillight/License Plate Lamp/Rear Turn-Lamp Bulb Replacement--8.589
- Instrument90
- Main Switch90
- Master Switch90
- Horn91
- Handle Switch91
Engine Inspection and Maintenance92
9 Lubricating System94
- Preparatory Data94
- Fault Diagnosis94
- Oil Pump95
10 Cooling System98
- Preparatory Data98
- Fault Diagnosis98
- Water Pump99
11 Cylinder Head102
- Preparatory Data102
- Fault Diagnosis102
- Cylinder Head103
- Valve Clearance Adjustment110
12 Cylinder Block and Piston111
- Preparatory Data112
- XII Cylinder Block and Piston112
- Fault Diagnosis113
- Cylinder Head113
- Installation of Piston117
13 Crankcase118
- Preparatory Data118
- Fault Diagnosis118
- Clutch118
- Gearshift Mechanism126
- Crankcase Connecting Rod Combination127
- Variable Speed Chamber130
Exhaust System Inspection and Maintenance133
15 Emission Control System134
- Emission Control System Guarantee134
- Regular Maintenance Guidelines134
- Emission Control System Mechanical Functions135
- Catalyst Conversion System136
- Solutions to Idle Exhaust Exceeding Specified Value137
Inspection and Maintenance of EFI System138
16 EFI System Description139
- Introduction to EFI System of Finished Enginecycle139
- EFI System Parts139
- Troubleshooting Diagnosis151
- Common Troubleshooting158
- Concise Troubleshooting159
QJ125GY-16A Circuit Diagram163

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