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Manuals
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Yamaha Manuals
Motorcycle
LB50IIAC
Service manual
Yamaha LB50IIAC Service Manual
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Chapter 1. General Information
Table of Contents
Features
Machine Identification
External View
Specifications
General Specifications
Maintenance Specifications
General Torque Specifications
Cable Routing
Special Tools
Chapter 2. Periodic Inspections and Adjustments
Introduction
Special Tools
Lubrication Intervals
Maintenance Intervals
Engine
Carburetor
Air Cleaner
Autolube Pump
Engine and Transmission Oil
Cylinder Head
Chassis
Fuel Petcock
Front Brake and Wheel
Rear Brake and Wheel
Drive Chain
Suspension, Steering and Swing Arm
Electrical
Spark Plug
Battery
Headlight Beam Adjustment
Chapter 3. Engine Overhaul
Removal
Preparation for Removal
Removal
Disassembly
Reed Valve Assembly
Cylinder Head and Cylinder
Piston Pin and Piston
Crankcase Cover, Right
Clutch Assembly and Primary Gear
Kick Axle Assembly
Shifter Rod Assembly
Crankcase
Transmission
Crankshaft Assembly
Inspection and Repairing
Cylinder Head
Cylinder
Piston Pin and Bearing
Pi~N
Piston Rings
Autolube Pump
Clutch
Kick Starter
Sub-Transmission
Crankshaft
Bearings and Oil Seals
Crankcase
Engine Assembling and Adjustment
Crankshaft Installation
Sub-Transmission Installation
Crankcase
Shifter
Kick Starter Assembly
Pump Drive Gear and Primary Drive Gear
Primary Gears and Clutches
Crankcase Cover, Right
Chapter 4. Carburetion
Air Cleaner
Description
Carburetor
Description
Disassembly
Troubleshooting and Repair
Disassembling the Mixing Chamber
Reassembly and Installation
Reed Val Ve Ass Em Bl V
Description
Removal and Assembly
Insulator
Chapter 5. Chassis
Front Wheel
Removal
Front Axle
Checking the Brake Lining Thickness
Bra~Drum
Replacing Wheel Bearings
Installing Front Wheel
Front and Rear Wheels
Rear Wheel
Removal
Checking the Brake Lining Thickness
Bra~Drum
Replacing Wheel Bearings
Installing Rear Wheel
Tires and Tubes
Removal
Installation
Drive Chain and Sprockets
Drive Sprocket
Driven Sprocket
Chain Inspection
Chain Maintenance
Front Forks
Disassembly
Inspection
Assembly
Steering Head
Adjustment
Disassembly
Inspection
Removal
Installation
Swing Arm
Swing Arm Inspection
Swing Arm Lubrication
Swing Arm Removal
Auto-Cock
Advantages of the Auto-Cock
Construction
Position of the Cock Lever and Fuel Passages
Check Lever Position for Travelling
Checking
Cables and Fittings
Cable Maintenance
Throttle Maintenance
Cable Junction Maintenance
Miscellaneous Chassis Components
Chapter 6. Electrical
Electrical Components
Chacking of Connections
Ignition System
Circuit Diagram
Troubleshooting
Charging System
Circuit Diagram
Troubleshooting
Troubleshooting
Lighting System
Circuit Diagram
Signal System
Troubleshooting
Signal System Check
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YAMAHA
4RP-28197-20
Table of
Contents
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Chapters
Chapter 1. General Information
4
Chapter 2. Periodic Inspections and Adjustments
36
Chapter 3. Engine Overhaul
53
Chapter 4. Carburetion
91
Chapter 5. Chassis
104
Chapter 6. Electrical
135
Table of Contents
Troubleshooting
Troubleshooting and repair
96
TROUBLESHOOTING
140
TROUBLESHOOTING
145
TROUBLESHOOTING
149
TROUBLESHOOTING
153
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