Be sure to add me to your favorites list Yamaha BB614L Left Handed 4 String Electric Bass Guitar Service Manual. This is a printed paper hardcopy copy of a Service manual for the Yamaha left hand 4 string bass, model BB614L. This one is extremely lightly used and includes: Cover sheet / TOC Overall assembly / including exploded views of the die cast bridge and Jack Installation parts list / full list of parts, * marks the new parts for this model circuit board circuit diagram wiring / F R pickups, F R volumes Tone dials specifications / full specs on this 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. Thank you so much for looking! Check out my Store!