DOWNLOAD Yamaha YZ125 (YZ 125) Repair Manual

A Yamaha YZ125 repair manual, often termed YZ125 owner’s service manual or YZ-125 factory workshop manual, is a book of repair instructions or how-to handbook that describes the process of fixing, restoring or overhauling the motorcycle back to working order. But with so many different kinds of “repair manuals”, which one is best? This write-up outlines the differences between each type of book:

  1. Repair Manual
  2. Owner’s Service Manual
  3. Owner’s Manual
  4. Workshop Manual

Yamaha YZ125 Service Manual, YZ 125 Repair Manual

Yamaha repair manual

A Yamaha YZ125 repair manual is a repair book developed by a 3rd party publisher. In other words, it is not a manual published by the motorcycle manufacturer.

Unlike Original Equipment Manufacturer (OEM) manuals, repair manuals are considered an aftermarket book, written mostly for backyard mechanics as well as professional motorcycle mechanics.

Repair manuals provide easy-to-follow repair instructions, high-definition pictures of the repair work being performed and complete disassembly and reassembly of the dirt-bike.

In truth, the repair book is no different than the factory service manual, except a repair manual provides a more detailed description of the work being performed—written in plain english.

Factory service manual

A Yamaha YZ125 factory service manual (FSM), also termed owner’s service manual are manuals published by the motorcycle manufacturer.

The manuals were originally created and distributed to authorized dealers and repair shops so that the qualified technicians were able to fix their own products.

Factory service manuals cover every aspect of servicing, maintenance and repair. They cover other topics such as troubleshooting, torque specifications, dimensions and part numbers. They also list necessary tools for the job and safety instructions.

Factory service manuals cover everything, from complete teardown to rebuild. Main chapters typically include:

  1. General Information
  2. Maintenance
  3. Specifications
  4. Regular Inspection and Adjustments
  5. Engine
  6. Chassis
  7. Electrical
  8. Tuning
  9. Troubleshooting

Keep in mind that a factory service manual was written for highly experienced mechanics who already possess a good understanding of mechanical theory. With that said, if you plan to perform maintenance or repair on your motorcycle, it is the first book I’d get regardless of your experience in mechanics.

Owners manual

An owner’s manual, also termed instruction booklet or user manual, is a book that is usually supplied with the purchase of the vehicle. The manual typically outlines things like:

  • Safety, warning or operation instructions.
  • Setup instructions.
  • Routine maintenance instructions.
  • Limited troubleshooting for when the vehicle will not begin to work.
  • Warranty information.
  • Service locations

An owner’s manual is great for first-time riders to become better acquainted with their new motorcycle. But keep in mind, this is not a repair manual, and if you plan to perform work on your motorcycle, you best obtain a factory service manual or repair manual. 

Workshop manual

A Yamaha workshop manual or owner’s manual are published by 3rd party publishers. These manuals are designed for the do-it-yourself enthusiasts.

Workshop manuals are basically the same as a repair manual. They focus on maintenance and repair. However, workshop manuals tend to be slightly vague. Covering more basic maintenance and repair work.

Personally, I am not very found of workshop manuals by 3rd party publishes, and I would steer clear of them. It should be noted, though, some factory service manuals are often termed workshop manuals. Factory workshop manuals are identical to a factory service manual.

The bottom line

Both the repair manual and factory service manual (or owner’s service manual) are the best type of manuals to get. Repair manuals can be costly but factory manuals can be dirt cheap and can also be downloaded in pdf format.

Portable document format (PDF) is a file format identical to a printed book. This means you can download the digital service manual in seconds and start fixing your bike now!

2 thoughts on “DOWNLOAD Yamaha YZ125 (YZ 125) Repair Manual

  • August 2, 2018 at 7:39 am

    I need a manual for Yamaha YZ125 2002, do you have it?

    • August 2, 2018 at 7:40 am

      Yes, there are manuals available for download on all models and years, including the following:

      1985 Yamaha YZ125 YZ125N
      1986 Yamaha YZ125 YZ125S
      1987 Yamaha YZ125 YZ125T
      1988 Yamaha YZ125 YZ125U
      1989 Yamaha YZ125 YZ125W
      1990 Yamaha YZ125 YZ125A
      1991 Yamaha YZ125 YZ125B
      1992 Yamaha YZ125 YZ125D
      1993 Yamaha YZ125 YZ125E
      1994 Yamaha YZ125 YZ125F
      2003 Yamaha YZ125 YZ125R
      2006 Yamaha YZ125 YZ125V
      2007 Yamaha YZ125 YZ125W1
      2008 Yamaha YZ125 YZ125X1
      2009 Yamaha YZ125 YZ125Y
      2010 Yamaha YZ125 YZ125Z


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