Yamaha 1990 CG50U Manuals

Manuals and User Guides for Yamaha 1990 CG50U. We have 1 Yamaha 1990 CG50U manual available for free PDF download: Service Manual

Yamaha 1990 CG50U Service Manual

Yamaha 1990 CG50U Service Manual (249 pages)

Brand: Yamaha | Category: Motorcycle | Size: 12.4 MB

Table of Contents

Insp Chapter 2 Periodic Inspections and Adjustments

16
- General Information
  6
  - Scooter Identification
    8
    
    Engine Serial Number
    8
    
    Table of Contents
    16
- CHAPTER 2 Periodic Inspections and ADJUSTMENTS
  18
- Introduction
  18
- Periodic Maintenance/Lubrication Intervals
  18
- Tail Cover
  19
  - Removal
    19
  - Installation
    20
- Front Fender, Front Panel and Footrest Board
  21
  - Removal
    21
  - Installation
    22
- Handlebar Covers
  22
  - Removal
    22
  - Engine Idle Speed Adjustment
    24
  - Throttle Cable Free Play Adjustment
    24
  - Autolube Pump Cable Adjustment
    25
  - Autolube Pump Air Bleeding
    27
  - Air Cleaner Element Cleaning
    28
    
    Fuel Cock Cleaning
    29
    
    Compression Pressure Measurement
    31
    
    Engine Oil Level Inspection
    32
    
    Transmission Oil Replacement
    33
    
    Fuel Line Inspection
    34
  - Chassis
    35
    
    Front Brake Lever Free Play Check
    35
    
    Rear Brake Lever Free Play Check
    35
    
    Tire and Wheel Inspection
    36
    
    Steering Adjustment
    37
  - Electrical
    38
    
    Battery
    39
    
    Fuse Inspection
    40
    
    Spark Plug Inspection
    41
    
    Headlight Beam Adjustment
    42
    
    Ignition Timing
    42
I Eng Chapter 3 Engine Overhaul

44
- Chapter 3 Engine Overhaul
  46
- Engine R E M O V a L
  46
  - Preparation for R E M O V a L
    46
  - • Tail Cover
    47
  - Front Fender, Front Panela N Dfootrest Board
    47
  - Carburetor
    47
  - E N G I N E R E M O V a L
    49
- Disassembly
  50
  - Muffler
    50
  - Cylinder Head
    51
  - • Cylinder
    52
  - Piston Pin and Piston
    52
  - Primary and Secondary Sheave
    53
  - !_:._ Starter System
    54
  - A G N E T O
    56
  - Autolube Pump
    57
  - Transmission
    57
- Inspection a N D Repair
  60
  - Cylinder Head
    60
  - Cylinder and Piston
    61
  - Piston Pin and Piston Pin Bearing
    64
  - A U T O L U B E P U M P
    65
  - Crankshaft
    65
  - Transmission
    66
  - Primary Sheave
    66
  - S Eco Nda Ry Sh Eave
    66
  - Starter Clutch and Gears
    70
- Engine a S S E M B L y a N D a D J U S T M E N T
  72
  - C R a N K S H a F T a N D C R a N K C a S E
    72
  - Transmission
    75
  - Autolube Pump
    79
  - Starter System
    82
  - Piston Pin and Piston
    88
  - Cylinder and Cylinder Head
    92
  - Muffler
    93
  - R E M O U N T I N G Engine
    93
Carburetion

96
- Auto Choke System
  98
- Chapter 4 Constituents
  98
- Wiring Schematic
  98
- Operation
  99
- Carburetor
  101
- Section View
  102
- Disassembly
  103
- Removal
  103
- Inspection
  105
- Assembly
  107
- Installation
  107
- Auto Choke Unit Check
  108
- Inspection
  109
- Reed Valve
  109
- Removal
  109
- Installation
  110
[Chas _! Chapter 5 Chassis

112
- Chapter 5 Chassis
  114
- Front Wheel
  114
  - Removal
    115
  - Inspection
    115
  - Assembly (Brake Shoe Plate
    117
  - Installation
    118
- Rear Wheel
  120
  - Removal
    121
  - Inspection
    122
  - Assembly (Brake Shoe Plate
    123
  - Installation
    123
- Rear Shock Absorber
  133
  - Removal
    134
  - Inspection
    134
  - Installation
    153
Table of Contents

212
- Periodic Inspection and Adjustment
  215
  - Introduction
    215
  - Periodic Maintenance/Lubrication Intervals
    215
  - Covers
    216
    
    Tail Covers and Moles
    217
    
    Front Panel, Leg Shield and Footrest Board
    218
    
    Handlebar Covers
    220
  - Engine
    221
    
    Engine Oil Level Inspection
    221
    
    Autolube Pump Air Bleeding
    223
- Electrical
  224
  - Electrical Components
    226
  - Signal System
    228
    
    Troubleshooting
    230
- Appendices
  233
  - Specifications
    233
    
    General Specifications
    243
  - GENERAL TORQUE Specifications
    243
  - Definition of Units
    243
  - Cable Routing
    244

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