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1968-1976 Yamaha 80cc-175cc Piston-Port service, repair manual Preview image 1
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1968-1976 Yamaha 80cc-175cc Piston-Port service, repair manual

Models covered in this manual:

  • 1968-1976 Yamaha 80-175 Piston-Port

    • 1968 Yamaha YG5T 80
    • 1969 Yamaha AT1 125
    • 1970 Yamaha AT1B 125
    • 1971 Yamaha AT1C 125
    • 1972 Yamaha AT2 125
    • 1973 Yamaha AT3 125
    • 1974 Yamaha DT175
    • 1975 Yamaha DT175
    • 1976 Yamaha DT175

File specifications

File size: 24.38 MB
File type: PDF
Language: English (some of our manuals are multi-language)

Printable: Yes
Estimated download time: 0.5 Minutes
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Product Information

Table of Contents

Chapter One: General Information

  • Manual organization
  • Tools
  • Expendable supplies
  • Mechanics tips
  • Safety first

Chapter Two: Periodic Maintenance

  • Engine tune-up
  • Chain adjustment
  • Brake check

Chapter Three: Engine, Transmission, and Clutch

  • Troubleshooting
  • Removal, disassembly, inspection, reassembly, installation
  • Engine upper end
    • Cylinder removal
    • Cylinder inspection
    • Cylinder bore gauge
    • Cylinder head
    • Piston removal
    • Piston inspection
    • Rings
  • Engine lower end
    • Crankcase
    • Oil seals
    • Bearings
  • Transmission
    • Transmission
    • Clutch removal
    • Clutch disassembly
    • Clutch reassembly
    • Clutch installation
    • Shifting gears
    • Clutch shaft
  • Crankshaft

Chapter Four: Carburetors

  • Carburetor operation
  • Carburetor overhaul
  • Specifications
  • Common carburetion problems

Chapter Five: Electrical System

  • Ignition system (magneto)
  • Ignition system (CDI)
  • Magneto
  • Ignition coil
  • Breaker points
  • Condenser
  • Rotor
  • Battery
  • Lighting system

Chapter Six: Chassis Service

  • Wheels
  • Brakes
  • Front forks
  • Steering head
  • Rear suspension

Chapter Seven: Troubleshooting

  • Operating requirements
  • Engine troubles
    • No start
    • Rough idle
    • Hesitation
    • Poor performance
    • Backfiring
    • Stalling
    • Overheating
  • Electrical troubles
    • Lights
    • Horn
    • Battery
  • Chassis troubles
    • Handling
    • Noise
    • Rough ride
  • Troubleshooting guide

Chapter Eight: Performance Improvement

  • Engine
  • Porting and polishing
  • Heads, valves, and bolts
  • Pistons
  • Compression ratio
  • Pipes
  • Reeds
  • Clutch and transmission
  • Chassis
  • Wheels and tires
  • Brakes
  • Forks
  • Shocks
  • Frame

Appendix: Specifications

Index

Wiring Diagrams


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