Be sure to add me to your favorites list Yamaha BB604 BB605 4 / 5 String Bass Guitar Service Manual and Parts List Booklet. This is a printed paper hardcopy copy of a Service manual for the Yamaha 6 string bass models BB604 and BB605. This one is extremely lightly used and includes: Cover sheet / TOC Overall assembly / exploded views of the diecast bridge and Jack Installation (for both models) parts list / full list of parts, * marks the new parts for these 6 string models (for both models) circuit boards circuit diagram wiring / F R pickups, F R volumes Tone dial specifications / full specs on these bass guitars This is a manual or document, this is NOT a piece of equipment or instrument. If you have any questions, I'm always happy to answer them. Thanks for looking! Check out my Store!