Recently rare? GSF1200 “Black S”. Inspection, Carb OH, Oil-cooled maintenance, Yoshimura digital gauge, USB-C installation, Tank rust removal and more

This year has been ridiculously rainy.

Starting with the Noto earthquake at the beginning of the year, it’s already November in a flash.
This year, many things have moved forward significantly.

So today I’m going to do some fabrication and installation work.

Installing a Yoshimura Progress Multi-Meter

Since they wanted the handlebar area to be as clean as possible, I installed it in the standard position.
It looks much cleaner if you don’t mount it on the M8 bolt of the handlebar post as much as possible.

Installation work for this type of part is quite tricky when it comes to labor costs.
The balance between the price of the part being installed and the labor cost (fabrication fee) is extremely difficult,
and if the shop side is considerate and keeps it reasonable, it inevitably ends up looking cheap.

I’ve come to feel that doing solid work and charging appropriately is better for everyone.
When having something installed, it might be good to request that it be done looking sharp!

ヨシムラ(YOSHIMURA)
¥12,620 (2026/09/21 02:00時点 | Amazon調べ)

The Suzuki OEM sensor cover is subtly nice

Suzuki 36618-43410
I think it’s probably an oil pressure switch or some kind of sensor cover.
This part is subtly built into the harness assembly,
and it was hard to find it as a standalone part.

Since it’s a bit large in size,
wrapping a 150mm cable tie tightly around the sensor works perfectly as a stopper too.

株式会社ヒロチー商事 楽天市場店
¥134 (2026/09/15 21:33時点 | 楽天市場調べ)

Since the sensor connector is hard to pass through, I cut off the thin tube part of the sensor cover and use it that way
With this installed, it looks really stock and cool!

The “Metaking” I received is subtly useful

I polished the meter cover chrome, which was quite bumpy, with Metaking.
This product performs better than I expected, so if you get the chance, definitely pick some up.
*Ceramic compound can also be used as a substitute, but…

Rust that’s already formed and puffed up won’t disappear.
It’s very effective on materials that are still good but have become cloudy.

I bent SUS plate, spot welded it, and fixed it with double-sided tape + Dual Lock.

It’s easy to attach and detach, and the sensor sensitivity should be working great.

The lamp is fixed with double-sided tape since there’s not enough adhesive area.

These days it’s USB Type-C

If we went with Qi charging, this USB Type-C port would be unnecessary,
but that alone requires significant initial investment.

If I explain it, everyone recoils at the price, so it usually ends up being this Daytona Type-C.

I quickly fixed it to the handlebar.
You can always adjust it freely.

If you put non-slip tape on the handlebar side, it will be held firmly and insertion/removal becomes easier.
It’s subtly evolving with each iteration.

This time I didn’t install the D unit, so I pulled the OP power from the switch side.
Using P-touch labeling makes it clear for anyone to understand, making it perfect.

By the way, there’s not a single day I don’t use P-touch, I love it that much.
I’ll say it again, it’s Brother P-touch, not Tepra.
*Note: Tepra is weak against solvents and chemicals, so it’s not really suitable for bikes.

The handlebar area is now much cleaner like this.

I made a careless mistake and forgot to order a part, so it’s on hold for now.
I’ll do the tank rust removal when the timing is right. There’s probably one more installment to come.

It looked a bit suspicious, so I replaced the lock nut and washer.

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