Yamaha YW50AP Motorcycle Scooter Manuals

Manuals and User Guides for Yamaha YW50AP Motorcycle Scooter. We have 1 Yamaha YW50AP Motorcycle Scooter manual available for free PDF download: Service Manual

Yamaha YW50AP Service Manual

Yamaha YW50AP Service Manual (214 pages)

Brand: Yamaha | Category: Scooter | Size: 8.3 MB

Table of Contents

General Information
5
Table of Contents
7
Chapter 1

15
- General Information
  15
- Scooter Indentification
  15
  - Vehicle Identification Number
    15
  - Model Code
    15
- Important Information
  16
  - Preparation for Removal and Disassembly
    16
  - Replacement Parts
    16
  - Gaskets, Oil Seals and O-Rings
    16
  - Lock Washers/Plates and Cotter Pins
    16
  - Bearings and Oil Seals
    17
  - Circlips
    17
- Checking of Connections
  18
- How to Use the Conversion Table
  19
  - Conversion Table
    19
- Special Tools
  20
- General Specification
  22
- Maintenance Specification
  25
Chapter 2

25
- Engine
  25
- Tightening Torques
  27
- Engine
  27
- Maintenance Specification
  28
  - Chassis
    28
  - Tightening Torques
    29
  - Chassis
    29
  - Electrical
    30
  - Maintenance Specification
    30
- General Torque Specifications
  32
- Lubrication Points and Lubrication Type
  33
  - Engine
    33
  - Chassis
    34
- Cable Routing
  35
Chapter 3

40
- Periodic Inspection and Adjustments
  40
- Introduction
  40
- Periodic Maintenance/Lubrication Intervals
  40
- Cover and Panel
  42
- Engine
  45
  - Idle Speed Adjustment
    45
  - Throttle Cable Free Adjustment
    46
  - Autolube Pump Air Bleeding
    47
  - Spark Plug Inspection
    48
  - Engine Oil Level Inspection
    49
  - Transmission Oil Replacement
    50
  - Air Filter Element Cleaning
    51
  - V-Belt Inspection
    53
- Chassis
  54
  - Front Brake Lever Free Play Check
    54
  - Rear Brake Lever Free Play Check
    54
  - Brake Pad Inspection
    54
  - Brake Shoe Inspection
    55
  - Brake Fluid Level Inspection
    55
  - Air Bleeding (Hydraulic Brake System)
    56
  - Steering Adjustment
    57
  - Tire Inspection
    58
  - Wheel Inspection
    61
  - Front Fork Inspection
    61
  - Rear Shock Absorber Inspection
    61
  - Seat Lock Cable Adjustment
    61
  - Cable Checking and Lubricating
    62
  - Levers Lubricating
    62
  - Centerstand Lubricating
    62
- Electrical
  63
  - Battery Inspection
    63
  - Fuse Inspection
    68
  - Headlight Beam Adjustment
    69
  - Headlight Bulb Replacement
    69
  - Taillight Bulb Replacement
    71
  - License Light Bulb Replacement
    71
- Engine Overhaul
  72
Chapter 4

72
- Wireharness and Cables
  72
- Engine Removal
  73
- Cylinder Head, Cylinder and Piston
  74
- V-Belt, Clutch and Secondary/Primary Sheave
  82
  - Kick Starter and Crankcase Cover(Left)
    82
  - Kick Starter
    83
  - Kick Starter Installation
    84
  - V-Belt, Clutch and Secondary/Primary Sheave
    85
  - Secondary Sheave
    86
  - Primary Sheave Removal
    87
  - Secondary Sheave Removal
    87
  - Clutch Inspection
    88
  - V-Belt Inspection
    89
  - Primary Sheave Inspection
    90
  - Secondary Sheave
    91
  - Secondary Sheave Installation
    92
  - Primary Sheave
    93
- Starter Clutch and Starter Motor
  95
  - Starter Clutch and Gears Inspection
    97
- Magnet
  98
  - C.D.I. Magneto
    98
  - C.D.I. Magneto Removal
    99
  - Magneto Installation
    99
- Autolube Pump
  100
  - Autolube Pump Installation
    101
- Transmission
  102
- Crankcase and Reed Valve
  104
  - Crankcase(Right) Removal
    106
  - Checking the Crankcase
    106
  - Checking the Bearings and Oil Seals
    106
  - Reed Valve Inspection
    107
  - Crankcase (Right) Installation
    107
- Crankshaft
  109
  - Crankshaft Removal
    110
  - Crankshaft Inspection
    110
  - Crankshaft Installation
    111
- Carburetion
  112
Chapter 5

112
- Carburetor
  112
- Caburetor Disassembly
  113
- Caburetor Inspection
  114
- Carburetor Assembly
  116
- Fuel Level Adjustment
  117
- Auto Choke Inspection
  118
- Fuel Cock Inspection
  119
- Front Wheel and Brake Disc
  120
- Chassis
  120
Chapter 6

121
- Front Wheel Disassembly
  121
- Front Wheel Inspection
  122
- Front Wheel Disassembly
  122
- Brake Disc Inspection
  123
- Front Wheel Assembly
  123
- Front Wheel Installation
  124
- Wheel Static Balance Adjustment
  125
- Front Brake
  127
  - Brake Pad
    127
  - Brake Pad Replacement
    128
- Master Cylinder
  131
- Master Cylinder Disassembly
  132
  - Master Cylinder Inspection
    133
  - Master Cylinder Assembly
    133
  - Master Cylinder Installation
    134
- Caliper
  136
- Caliper Disassembly
  137
  - Brake Caliper Disassembly
    138
  - Caliper Inspection
    138
  - Brake Caliper Assembly
    139
  - Brake Caliper Installation
    139
- Rear Wheel and Rear Brake
  140
  - Rear Wheel
    140
  - Rear Brake
    141
  - Rear Wheel Inspection
    142
  - Rear Brake Inspection
    142
  - Rear Brake Installation
    143
- Handlebar
  144
  - Handlebar Installation
    146
- Steering
  148
  - Steering Removal
    149
  - Steering Inspction
    150
  - Steering Installation
    150
- Front Fork
  153
  - Front Fork Disassembly
    154
  - Front Fork Removal
    155
  - Front Fork Disassembly
    155
  - Front Fork Inspection
    156
  - Front Fork Assembly
    156
  - Front Fork Installation
    158
Chapter 7 Electrical

159
- Electrical Components
  159
  - Circuit Diagram
    160
- Checking Switches
  162
  - Checking Steps
    162
  - Switch Connection as Shown in this Manual
    162
- Switch Position and Terminal Connection
  163
- Ignition System
  167
  - Circuit Diagram
    167
  - Troubleshooting
    168
- Charging System
  172
  - Circuit Diagram
    172
  - Troubleshooting
    173
- Electric Starting System
  176
  - Circuit Diagram
    176
  - Troubleshooting
    177
  - Starter Motor
    180
  - Starter Motor Disassembly
    181
  - Inspection and Repair
    182
- Lighting System
  184
  - Circuit Diagram
    184
  - Troubleshooting
    185
  - Lighting System Check
    187
- Signal System
  191
  - Circuit Diagram
    191
  - Troubleshooting
    192
  - Signal System Check
    194
- Auto Choke System
  200
  - Circuit Diagram
    200
  - Troubleshooting
    203
- Starting Failure/Hard Starting
  203
Chapter 8

203
- Fuel System
  203
- Ignition System
  204
- Compression System
  204
- Poor Idle Speed Performance
  205
- Poor Midium and High Speed Performance
  205
- Fulty Automatic(V-Belt Type)
  206
- Overheat
  207
- Poor Speed
  207
- Improper Kicking
  208
  - Slipping
    208
  - Hard Kicking
    208
  - Kick Crank Not Returning
    208
- Faulty Brake
  209
  - Poor Braking Effect
    209
  - Malfunction
    209
- Instable Handling
  210
- Faulty Signal and Lighting System
  211
  - Headlight Dark
    211
  - Bulb Burnt out
    211
  - Flasher Does Not Blink
    211
  - Flasher Keeps on
    211
  - Flasher Blinks Slower
    212
  - Flasher Blinks Quicker
    212
  - Horn Does Not Sound
    212
  - Wiring Diagram
    213

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