1977 Yamaha XS400 Service and Repair Manual

Yamaha catalogued this book as LIT-11616-XS-42, and it is the reference the factory expected a dealer technician to keep on the bench when a 1977 XS400 came in for work. The machine is identified in it by the model code XS400D.

One volume was written to cover a long run of related twins: model years 1976 through 1982, and alongside the XS400 it also documents the XS360 and the XS400 SPECIAL II. That breadth is useful when a bike has been kept alive with parts from a neighbouring year, because the sections show where the specifications diverge instead of pretending every machine is the same.

What the book is for

• Step-by-step disassembly and assembly written in factory sequence
• Torque figures, clearances and adjustment values
• Wiring diagrams for tracing an electrical fault to its connector
• Diagnostic charts for running and starting complaints

Check the code on your frame or engine against XS400D before ordering.