GS1000S Inspection Service | Fuse Box Modernization and Electrical Enhancement via Oil-Cooled Earth Line Repurposing

We’re currently improving and repairing areas we’ve been turning a blind eye to (*´ω｀*)
The bike is gradually shedding its quirks.

We’re going to modify the rear brake hose layout—it’s a bit risky as is.

The rear brake hose is unusually long, and it looks like it was somehow repurposed and reused.
On top of that, bleeding is already a hassle, and there are plenty of spots where air can get trapped.

On the master side, it drops straight down at 90 degrees, and on the caliper side, we’re using a side neck.

With a simple layout where air naturally rises, we should have fewer problems.

For brake lines that look like they might leak, we use Harley-specific

Neo Factory brand “008302 OEM Type 3/8 Banjo Washer” can be used with
both DOT4 (and DOT5) brake fluid.
It’s a rubber-sealing type.
It’s good to keep some on hand for areas where the surface is rough or might weep.
Standard seal washers aren’t compatible with fluid, so be careful.

Strengthening with main earth line repurposing

This is the 33860-06B12 for oil-cooled GSX-1100 all model years(?).
This is a favorite of ours—it’s a “magic earth line” that can be used on various vehicles! *Compared to our other options

The appeal is that the main harness connection side features a “250-type lock coupler”—*standard practice.
Kawasaki Z-series typically use standard blade terminals, so repurposing this will boost reliability

Adding a boot over it gives it an even more stock appearance…

Repairing and Streamlining Mysterious Fuse BOX Wiring Modifications

We’re upgrading the fuse box to mini blade fuses.
Apparently, this GS1000S originally used either an oil-cooled or Katana blade fuse box.

Since the owner likes to store lots of stuff under the seat, we’re making sure there are no issues.

We cut off the existing bracket and then secure a custom-made bracket with Megmix.
It’s the most affordable and versatile mounting method.

I’ve also written an explanation on note (*´ω｀*)

It’s not Tepra! It’s P-TOUCH.
For bikes and other hard-use applications, P-TOUCH is absolutely the way to go! The text won’t fade even if chemicals or solvents splash on it.

Just making labels like this really improves the overall finish.
We still have 2 circuits available, so we can add more if needed.

This fuse box is quite versatile, so check it out for reference.

We managed to fit everything neatly into the available space

Electric Auto-Cancel / Automatic Turn Signal OFF Unit

You could swap out the switch box for an auto-cancel version, but we’re still using this unit, so we’ll install it properly.

I managed to fit it in this gap (*´ω｀*)
We’re trying to do everything we want while making the best use of the current setup, so it’s quite involved.
Good thing the wiring didn’t catch fire!

There’s a bit more to come!