1982 Yamaha TRI-MOTO 175 Service and Repair Manual

The 175 has its own literature. Part number LIT-11616-03-20 is the factory service manual for the Tri-Moto 175, and the 1982 machine is model code YT175J.

Yamaha's coverage for this book lists 1982 and 1985, so it is not a continuous run. Check your frame code against YT175J and confirm the year before treating any figure as yours; on a book with gaps, that step is not optional.

Procedures cover routine inspection and adjustment, engine disassembly and reassembly with the measurement points and service limits stated, carburetor and ignition specifications, electrical testing, and chassis work across steering, suspension, wheels and brakes. A wiring diagram is included, along with troubleshooting guidance.

It is dense, plainly written and free of anything resembling sales copy, which is exactly its value four decades on. The original numbers are still the original numbers.