Table Of Contents - Honda na50 express II Shop Manual

Table of Contents

Table Of Contents4
Features6
Vehicle View6
2-Stroke Engine, Fundamental Information7
2-Stroke Cycle Principle7
Port Timing8
Reed Valve Construction8
Location Of Ports In Cylinder8
2-Stroke Port And Valve Arrangement9
Scavenging10
Engine11
Cylinder Head11
Piston12
Piston Ring Dowel12
Ring Expander12
Cylinder13
Crankshaft/Crankcase13
Starting System/Power Transmission System14
Before Starting/Starting14
Power Transmitting System15
Starter Drive Sprocket16
Starter Spring16
Clutch17
Lubrication System Of 2-Cycle Engine19
Separate/Mixed Lubrication19
Nc50 Lubrication System19
Oil Pump20
Lubrication System Operation21
Lubricating Oil Flow22
Carburetor23
Choke Circuit23
Servicing Procedures25
Service Precautions26
Inspection/Adjustment27
Brake Lever Adjustment27
Brake Shoe Inspection27
Starter Lever Adjustment28
Idle Adjustment29
Fuel Level Check29
Contact Breaker Point Gap30
Ignition Timing30
Air Cleaner Element31
Oil Filter Cleaning31
Spark Plug32
Battery Electrolyte Level Check/Replenishment32
Reading Specific Gravity Of Electrolyte32
Bleeding Oil Pump33
L. Cover Oil Replacement/Level Check33
Engine Removal/Installation34
Cylinder Head/Cylinder/Piston36
Piston Disassembly/Assembly37
Piston Ring Disassembly/Assembly37
Cylinder Head Decarbonizing38
Exhaust Port Decarbonizing38
Piston/Piston Ring Clearance38
Piston Skirt O.d.39
Cylinder I.d.39
Piston Ring End Gap40
Poston Pin O.d.40
Piston Pin Hole I.d.40
Engine Oil Pump41
Engine Ac Generator42
Flywheel Disassembly/Assembly43
Rotor Flange43
Contact Breaker Disassembly43
Contact Breaker Point44
Engine L. Cover/Starter45
L. Cover Disassembly Without Oil Renewed45
L. Cover Disassembly When Oil Renewed46
Starter Disassembly/Assembly47
Starter Stopper Disassembly48
Starter Drive Sprocket Disassembly48
Starter Drive Sprocket Assembly49
Starter Stopper Inspection49
Starter Arm/Spring Inspection49
Drive Sprocket50
Clutch/Final Drive Gear51
Drive Plate Disassembly/Assembly52
Ball Bearing Assembly52
Inspecting Drive And Driven Sprockets For Wear53
Ball Bearing Looseness53
Clutch Shoe Wear54
Clutch Spring Tension54
Crankcase And Crankshaft55
L-Crankcase/R-Crankcase Disassembly56
Crankcase/Oil Seal Assembly56
Check Connecting Rod Small End Bearing Looseness57
Check Bearing Looseness57
Measure Connecting Rod Big End Bearing Side Clearance57
Measure Crankshaft Runout57
Engine: Carburetor58
Air Cleaner59
Carburetor Disassembly/Assembly59
Main Jet/Slow Jet Clogging60
Float Valve Operation60
Throttle/Choke Wire Fray Or Damage60
Choke Valve/Throttle Valve Damage60
Frame: Handlebar/Front Fork/Front Wheel61
Front Wheel Disassembly/Assembly62
Front Brake Arm Readjustment62
Ball Race Disassembly/Assembly63
Checking Ball Bearing Looseness63
Checking Front Wheel Axle Bend63
Wheel Hub I.d.64
Brake Lining Thickness64
Front Wheel Wobble64
Rear Wheel/Rear Brake65
Rear Brake Arm Resetting65
Checking Ball Bearing Looseness/Measure Wheel Hub I.d.66
Measure Brake Lining Thickness66
Rear Shock Absorber/Fuel Tank67
Rear Shock Absorber Disassembly67
Electrical Accessories And Their Locations68
Ignition Coil69
Rectifier69
Lighting Coil69
Battery Charging70
Main Switch70
Dimmer/Horn Switch70
Engine Stop Switch70
Special Tools71
Maintenance Schedule72
Torque Specifications73
Service Data: Engine/Frame74
Troubleshooting75
Specifications79
Wiring Diagram81
Na 50: Table Of Contents82
Na 50: Features83
Na 50: Servicing Procedures84
Na 50: Inspection/Adjustment85
Na 50: Idle Adjustment85
Na 50: Fuel Level85
Na 50: Spark Plug86
Na 50: Battery Electrolyte Level Check/Replenishment86
Na 50: Engine Removal/Installation87
Na 50: Handlebar/Front Fork/Front Wheel89
Na 50: Rear Shock Absorber/Fuel Tank/Seat90
Na 50: Seat91
Na 50: Electrical Accessories And Their Locations92
Na 50: Cable Routing93
Na 50: Specifications94
Na 50: Wiring Diagram96
Nc 50 '80 Addendum: Table Of Contents97
Nc 50 '80 Addendum: Lubrication System98
Nc 50 '80 Addendum: Inspection/Adjustment99
Nc 50 '80 Addendum: Control Cable Lubrication99
Nc 50 '80 Addendum: Electrical Accessories And Their Locations100
Nc 50 '80 Addendum: Turn Signal101
Nc 50 '80 Addendum: Cable Routing102
Nc 50 '80 Addendum: Maintenance Schedule103
Nc 50 '80 Addendum: Specifications104
Nc 50 '80 Addendum: Wiring Diagram106
Na 50 '80 Addendum: Table Of Contents108
Na 50 '80 Addendum: Cable Routing109
Na 50 '80 Addendum: Specifications110
Na 50 '80 Addendum: Wiring Diagram112
Nc50, Na50 '81 Addendum113
Nc50, Na50 '81 Addendum: Capacitor/Discharge Ignition114
Nc50, Na50 '81 Addendum: Automatic Choke116
Nc50, Na50 '81 Addendum: Automatic Choke Operation117
Nc50, Na50 '81 Addendum: Na50 Two-Speed Automatic Transmission118
Nc50, Na50 '81 Addendum: How The Transmission Works In 1St/2Nd Gear119
Nc50, Na50 '81 Addendum: Inspection And Adjustment120
Nc50, Na50 '81 Addendum: Ignition Timing120
Nc50, Na50 '81 Addendum: Bystander Element Cleaning120
Nc50, Na50 '81 Addendum: Throttle Grip121
Nc50, Na50 '81 Addendum: Idle Speed121
Nc50, Na50 '81 Addendum: Oil Pump Bleeding/Priming122
Nc50, Na50 '81 Addendum: Cylinder Head/Cylinder/Piston123
Nc50, Na50 '81 Addendum: Control Box123
Nc50, Na50 '81 Addendum: Fuel Lines Routing123
Nc50, Na50 '81 Addendum: Cylinder Replacement123
Nc50, Na50 '81 Addendum: Oil Pump124
Nc50, Na50 '81 Addendum: A.c. Generator125
Nc50, Na50 '81 Addendum: Kick Starter Disassembly/Assembly126
Nc50, Na50 '81 Addendum: Clutch Disassembly/Assembly127
Nc50, Na50 '81 Addendum: Electrical Accessory Locations128
Nc50, Na50 '81 Addendum: Charging Circuit129
Nc50, Na50 '81 Addendum: Ac Generator Inspection130
Nc50, Na50 '81 Addendum: Rectifier Inspection130
Nc50, Na50 '81 Addendum: Ignition Circuit Inspection131
Nc50, Na50 '81 Addendum: Ignition Coil131
Nc50, Na50 '81 Addendum: Cdi Unit132
Nc50, Na50 '81 Addendum: Tools133
Nc50, Na50 '81 Addendum: Cable And Wire Harness Routing134
Nc50, Na50 '81 Addendum: Turn Signal135
Nc50, Na50 '81 Addendum: Maintenance Schedule136
Nc50, Na50 '81 Addendum: Specifications137
'81 Na 50 Wiring Diagram139
'81 Nc50 Wiring Diagram140
Nc50 '82 Addendum141
Nc50 '82 Addendum: Front Fork/Front Wheel142
Nc50 '82 Addendum: Fuel Tank/Seat/Rear Carrier143
Nc50 '82 Addendum: Electrical Component Locations144
Nc50 '82 Addendum: Cable And Wire Harness Routing145
Nc50 '82 Addendum: Fuel Line Routing147
Nc50 '82 Addendum: Maintenance Schedule148
Nc50 '82 Addendum: Specifications149
Nc50 '82 Addendum: Wiring Diagram150