1980 Yamaha YZ250 Service and Repair Manual

Two models share this one. Yamaha's service manual LIT-11626-01-85 documents the 1980 YZ250, model code YZ250G, and the YZ465 of the same season.

Shared coverage was normal when two machines were built on common architecture, and it works in the owner's favour: one book on the shelf serves both, with the figures that differ between them identified where they appear.

On the bench

• Measure against the printed service limits rather than judging wear by appearance
• Use the torque tables on cases, head and chassis fasteners
• Follow the disassembly and assembly order as the factory set it out

Ignition timing, carburettor settings, suspension specifications and the wiring diagram round out the volume. Confirm YZ250G on your frame label before ordering.