Be sure to add me to your favorites list Yamaha BB N4L III Left Handed Bass Guitar Service Manual. This is a printed paper hardcopy copy of a Service manual for the Yamaha model BB N4L III left hand 4 string bass guitar. It would certainly be helpful when working on any of the previous BBN4L models as well. This one is like new and includes: Cover sheet / TOC Overall assembly + exploded view of the die cast bridge parts list / full list of parts, * marks the new parts for the "III" model circuit diagram wiring of F R pickups, F R volumes Tone dial 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 .... Please Check out my Store!