Be sure to add me to your favorites list Yamaha BB414 4 String Bass Guitar Service Manual / Parts List / Schematics Booklet. This is a printed paper hardcopy reproduction copy of a Service manual for the Yamaha 4 string bass, model BB414. This is in new condition and includes: Cover sheet / TOC Overall assembly / exploded views of the chrome bridge, tuning machine assembly, and Jack Installation. Parts list / full list of parts, * marks the new parts for this model. Circuit diagram Wiring / F R pickups, F R volumes. specifications / full specs on this model bass guitar. 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!