Nearly done with this guitar, so I might as well write the final entry to its blog story. I really can’t praise this Yamaha enough, it definitely deserved the second chance (or third, fourth, …) it got from this restoration.
When I bought it it was missing all the electronics apart from the pickups, which were painted silver. The guitar had been refinished in an awful looking cherryburst. Somewhere in its life the neck was also sprayed in a different color over the original clear-coat on the back. I removed all the lacquer from the guitar, stripping it to the bare wood but leaving the aforementioned layer of paint on the back of the neck intact.
The body and headstock were sprayed with a sealer, white primer and finished in Traffic Red (RAL 3020), which is as close to the original red I could get. I haven’t seen one of these SG’s in person, however I would bet it matches almost a 100%. Finally the body, headstock and back of the neck were finished with several layers of clear-coat. Another side note, the rosewood fretboard was covered with some overspray from a previous refin. Luckily it wasn’t that thick of a layer and came off relatively easy. It has crept into some of the larger creases caused from player wear which is now hard to remove from completely.
Back to the electronics. For some reason both pickups and the pickup rings were finished in a silver paint over the original dark brown plastic. Unfortunately, the paint didn’t dissolve that well with thinner and I had to carefully sand the silver off. I did scrape the plastic pickup cover a bit, but the damage done was kept to a minimum.
These guitars originally came with two volume pots, two tone pots and a pickup selector on the bass side, similar to a Gibson Les Paul. I didn’t want to complicate things with different features so I bought 4 regular long shaft 250k CTS pots. What type of pot values Yamaha used on SG-40s and other models I couldn’t find online. Judging by the look of these pickups they were somewhat modeled after the ones found on Mosrite guitars. Wiring diagrams and other info I could find on Mosrite pot values pointed to values of 250- or 300k.
Besides the missing electronics the SG was also missing its plastic back plate and metal jack plate. I had these made by two people I knew who had the correct tools and were more than happy to help me with this project. Thanks a lot if you happen to both read this!
I’ve been playing this guitar for several weeks and I am really impressed how it sounds and plays. Clean with a bit of modulation or dirty these pickups really deliver and the neck profile is very comfortable for chording and solos. It does need a refret somewhere in the near future. Especially the first few frets on the G, B and E string are in pretty bad shape. Otherwise the neck is great, it has shown no signs of warp and the truss-rod is fully functional. By some divine miracle I didn’t have to adjust the bridge saddles, the guitar was perfectly intonated as-is! The bridge plate just had to be raised slightly to avoid fret buzz.
The observant folk have already noticed that in the pictures my Yamaha is missing three of its knobs. Original knobs are next to impossible to find so I’ve been scouring the internet to find anything similar. I found this knob in a guitar store which happened to look somewhat the same as an original. If anyone has matching knobs or any leads on where to find them please contact me!
An update on the Black Eagle/Precision, still have to come up with a clever hybrid name. I got the bass back this week after some minor repairs on the neck and neck pocket. Hopefully next week I’ll be routing for a Jazz Bass pickup in the bridge position. I have chosen to finish the body in black. A big thanks to Walter, he has built me a Precision Bass pickguard with Black Eagle inlays. It’s in the mail at the moment but the pictures he sent me looked great. Can’t wait to finish the bass!