Yamaha's coverage of the 2004 RAPTOR 80, model code YFM80WS, comes in the shared volume LIT-11616-YF-81, which runs from 2002 to 2008.
A book covering that many years is explicit about where the years diverge, so the specification and wiring pages carry the notes and the procedures stay common. That keeps the text usable on any RAPTOR 80 in the range.
Practically, it gives you the maintenance schedule with its adjustment figures, the carburettor and ignition specifications, the automatic clutch inspection procedure, the drive chain and sprocket limits, brake service figures, engine teardown with wear limits and reassembly torques, exploded views, and the complete wiring diagram.
Confirm YFM80WS on the frame label first, because three of the codes in this manual begin identically.
