Ibanez GIO Bass Needs a Setup

January 5, 2025. CA Guitar Repair. Taman Impian Ku, 25200 Kuantan.

Custom Explorer Bass Makeover | Part Four

Part One | Part Two | Part Three | Part Four | Part Five

This is the fourth instalment of an ongoing series concerning a makeover on a custom Explorer-style five-string bass. After final-sanding the body with 220-grit sandpaper, Elmer's Carpenter's Wood Filler tinted with StewMac Red Mahogany ColorTone Liquid Stain (#5032) was applied liberally and left to dry overnight.

After sanding off the Red Mahogany grain filler, a second round of filler was applied, this time tinted with Dark Walnut (#5104). This was once again sanded off after overnight drying. As the grain still was not as dark as I wanted it to be, the wood was stained with Sumi black ink. After sanding off the ink, the grain was about as dark as it would ever be.

So now it finally time to stain the body with Cherry Red (#5038). Yes, I was rather pleased with the results. However, I noticed that the headstock face was a couple shades lighter than the body. This being the case, I had no choice but sand off the Tru-Oil applied earlier and restain the headstock face.

Having taken care of the grain-filling and staining, I could now apply conductive shielding paint to the pickup and control cavities. The next step should be applying a clear matte finish to the the body and headstock face. Thank you for dropping by. Do stay tuned for future updates on this Custom Explorer Bass Makeover. Stay home, stay safe; and I'll see you real soon :)

Custom Explorer Bass Makeover | Part Three

Part One | Part Two | Part Three | Part Four | Part Five

This is the third instalment of an ongoing series concerning a makeover on a custom Explorer-style five-string bass. I'd finally determined what I thought was the correct bridge location in terms of scale length/intonation and side-to-side string alignment. However, I was wrong. The correct location was still at the same distance from the nut, but slightly to the right of the body's center line.

After six new holes had been drilled for the bridge mounting screws, the bridge was successfully installed. The neck was then reattached, and the bass strung with "dummy" G and B strings. I'm glad to report that side-to-side string alignment was where I wanted it to be. That being taken care of, it was time to remove the masking tape, clean off any tape glue residue; and plug redundant screw holes. These holes were plugged with wood glue-laced wooden dowels, which, once the glue had cured; were trimmed and sanded flush with the surrounding wood.

While all this was going on, I suddenly realized that neck mounting screws were quite loose; even when fully tightened. Further investigation revealed that one of these screws was slightly shorter and smaller in diameter than the others, the screw heads were chewed up and rusty; plus the existing holes in the neck heel were worn out. The obvious solution was to: (i) plug the screw holes and redrill, and (ii) replace the neck mounting screws with a matching set.

The neck heel hole-plugging process was similar to that employed for the redundant screw holes in the body; except that larger wood dowels were used. Once this was done, the neck was reattached; and everything now fit "as snug as a bug in a rug" (as my late Dad would say).

That's all I have to share for this post. The next stage of this makeover should be grain-filling, staining; and refinishing the body. Thanks for dropping by. Stay safe, wear a mask when outdoors; and I'll see you all real soon :)

Custom Explorer Bass Makeover | Part Two

Part One | Part Two | Part Three | Part Four | Part Five

In Part 1 of this series, it was detailed how successive layers of gold flake, black paint, wood etchings, filler and goo were painstakingly scraped and sanded off until bare wood was finally revealed. In this episode, we pick up where we left off.

To begin with, grain filling was done on the back of the neck and headstock, as well as the headstock face; with  Elmer's Carpenter's Natural Wood Filler. Once excess filler had been sanded off, staining was effected using StewMac ColorTone Liquid Stains thinned with alcohol. Vintage Amber (#5030) was used for the back of the neck and headstock; and Cherry Red (#5038) for the headstock face.

Following this, these surfaces were refinished in Tru-Oil. Kindly note that I'll not be doing any refinishing work on the body until I've sealed existing screw holes and drilled new ones for the replacement bridge. Believe me, it's way safer to do any drilling before refinishing -- don't ask me how I know.

Next came taking accurate measurements before marking the all-important center and 34" lines prior to the installation of the new bridge. Once this was taken care of, the neck was reattached to the body; and the new bridge temporarily secured in the correct location. Then, two strings were utilized to check for proper side-to-side alignment. Guess what? The G and B strings were falling right off the edges of the fretboard! This meant that the new bridge could not be used as the G-B string spread was just too wide for the neck.

After some more measuring, it was determined that the G-B string spread of the original bridge was 6.8 cm; while that of the new bridge was a whopping 7.5 cm. Bottom line: the new bridge had to be put aside and the original reinstalled; no questions asked. I also suspect that the original bridge itself had not been installed correctly right from the start. The first issue was that it was not centered correctly. The second was that when aligned with the 34" mark, the G-string saddle was only about halfway forward.

When determining proper bass bridge location, I first make sure the bridge is "centered." Then, I adjust the G-string saddle to its forward-most position; and pull back about 1/16" to allow for some leeway. Next, I position the bridge so that the "break point" (the point where the string passes over the saddle) of the G-string saddle is aligned with the 34" mark. If this all sounds a little complicated, do check out these two excellent online resources:

Bridge Placement (scroll down to the post by "Rodent")

Electric Guitar and Bass Assembly Guide (scroll down to "Locating the bridge")

Going back to the drawing board, I've centered the original bridge, pulled it back so that the break point of the G-string saddle aligns with the 34" mark; and marked the new positions for the bridge mounting screws. The next step will be actually drilling these new holes, reinstalling the bridge; and checking once again if the strings are aligned correctly. Do check for further updates on this Custom Explorer Bass Makeover; and thanks for dropping by :)

Clevan Bass - Rusty Bridge and Shorted Wiring

Sometimes instruments are sent to me for the bare minimum due to cost concerns. Such is the case with this Clevan PJ four-string bass. It lives in a jamming studio and has been used and abused by countless would-be bass players since day one. So, it's no wonder that the bridge is a rusted wreck; and the pickups dead. I've been tasked with replacing the bridge and rewiring the whole thing. And if the pickups are well and truly dead; replace them. The thoughtful studio boss has even provided me with a set of P and J pickups, plus a replacement bridge.

Well, I've replaced the bridge after lots of careful measurement. You know, measure twice, cut/drill once; that sort of thing. As for the pickups, lo and behold -- they're still alive and kicking! Turns out it was shorted wiring that put this bass in a coma. Sometimes, less is more when it comes to the amount of solder one uses. Use too much, and the overflow/drip can create unwanted connections; shorting out your pots or other electronics. I'd have liked to have done more for this bass, like replace those tiny crappy pots with Alpha A500Ks; and the output jack with at least a Neutrik/Rean NYS229. However, the bottom line is that you do what the client tells you to do -- no more, no less.

Squier Vintage Modified '77 Jazz Bass

This black beauty belongs to Juan of Kuantan-based indie band Whizzer. He wanted it derusted, cleaned, polished; and restrung with La Bella 760FS Deep Talkin' Bass flatwound strings. Of course, I was only too happy to oblige. I'll let the pics tell the story of what went down. Meanwhile, a little research at the websites of Swee Lee and Music Bliss have unearthed quite a bit of information concerning this instrument. Most of the features would be quite obvious even to the non-musician; but I'm listing them here for the sake of future reference.

Body Material: Agathis
Body Finish: Gloss Polyester Black
Neck: Maple/bolt-on/"C"-shaped profile/vintage-tint gloss finish
Fretboard: Maple/34" scale/9.5" radius/pearloid block inlays/white binding
Frets: 20 medium jumbo
Bridge: 4-saddle standard bridge
Pickups: Two Fender-designed single-coil Jazz Bass
Tuners: Standard Open-Gear
Controls: Neck pickup volume/bridge pickup volume/master tone
Knobs: Black Strat-style
Pickguard: Three-ply black/white/black
Hardware Finish: Chrome