1982 Yamaha TRI-MOTO 125 Service and Repair Manual

By 1982 the model name gains its displacement badge and the manual settles into a longer run. LIT-11616-YT-02 covers the Tri-Moto 125 from 1982 through 1985, and the 1982 machine is model code YT125J.

Using it

Because four seasons share the volume, each specification table indicates the years it applies to. Start from YT125J, find your column, and work from that rather than from the first figure on the page.

The chapters cover periodic maintenance and adjustment, engine and transmission service with clearances and service limits, carburetion and ignition settings, electrical system testing, and chassis repair including steering, suspension, wheels and brakes. Wiring diagrams and troubleshooting charts are part of the package.

Written in the flat procedural style of factory literature, it tells you the order and the numbers. On a forty-year-old three-wheeler, that is usually the information that is hardest to come by and easiest to get wrong.