1980 Yamaha XJ650 Service and Repair Manual

Yamaha wrote a single service publication, LIT-11616-XJ-60, for the XJ650 of 1980 to 1982, and it takes in the Maxim as well. The 1980 machine carries code XJ650G.

Shared coverage means the procedures call out where a variant or a later season differs, so read the headings before following a specification. Otherwise the material is common: overhaul sequences, tightening torques, wear limits, carburettor settings and synchronisation, brake and suspension work, and the full factory wiring diagrams.

Fitment check: XJ650G is the 1980 code. Match it against your frame plate, and note that a 1983 XJ650 is documented in a different publication.

Capacities, lubricant grades and adjustment ranges appear with the specifications, and troubleshooting is arranged by the symptom an owner would describe rather than by system. It is dealer material, unaltered.