1989 Yamaha YZ125 repair, service manual

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Yamaha 1989 Yamaha YZ125 repair, service manual - Technical Specifications

  • File Size: 37.26 MB
  • File Type: ZIP
  • Language: English (some of our manuals are multi-language)
  • Printable: Yes
  • Estimated Download Time: 0.76 Minutes
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Yamaha Models and Parts Covered in this Bike Manual

YZ125 / Yamaha Motor Corporation, Ltd

  • Engine: 124 cc, reed valve two-stroke, single
  • Production year(s): 1989

Yamaha 1989 Yamaha YZ125 repair, service manual - Complete Manual Information

Table of Contents

1 GENERAL INFORMATION

  • Description
  • Identification Numbers
  • Specifications
  • Torque Specifications
  • Special Tools

2 MAINTENANCE

  • Periodic Maintenance Schedule
  • Routine Maintenance Intervals
  • Lubrication Points
  • Maintenance Tasks
    • Air Filter Cleaning
    • Oil Changes
    • Throttle and Clutch Adjustment

3 ENGINE

  • Engine Removal and Installation
  • Disassembly of Engine
  • Inspection and Repair
    • Cylinder and Piston
    • Crankshaft
    • Gearbox
  • Reassembly of Engine

4 FUEL SYSTEM

  • Carburetor Adjustment
  • Fuel Tank and Tap Cleaning
  • Reed Valve Maintenance

5 COOLING SYSTEM

  • Radiator
  • Coolant Replacement
  • Water Pump

6 ELECTRICAL SYSTEM

  • Ignition System
  • Spark Plug
  • Kill Switch
  • Electrical Troubleshooting

7 CHASSIS

  • Frame
  • Suspension Setup and Maintenance
    • Forks
    • Rear Shock
  • Wheels and Tires
  • Brakes
    • Front and Rear Brake Service
    • Brake Fluid Replacement

8 TRANSMISSION

  • Clutch Assembly
  • Transmission Gears
  • Shift Mechanism

9 EXHAUST

  • Exhaust Pipe Removal and Installation
  • Muffler Cleaning

10 STEERING

  • Steering Head Adjustments
  • Handlebar Replacement

11 APPENDICES

  • Wiring Diagram
  • Troubleshooting Chart
  • Bearing and Seal Replacement

12 INDEX

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Mark T.says...
This manual is a lifesaver! The detailed sections on engine disassembly and electrical troubleshooting were particularly helpful. The download process was seamless, and I received the link almost instantly. Great support as well!