
It’s already the end of April, but isn’t it still cold in the mornings and evenings? Desk work is the coldest.
I’m quietly running the heater, so the electricity bill is climbing.
Seeing this nostalgic GSF1200 really gets me feeling sentimental. Well then, let’s get started!

So we’re going to do something that’s been trending lately—different colored wheels front and rear.
It’s subtly styled like a vintage superbike privateer setup.
We’re changing from Marchesini M7 to Magtan JB1.
While we’re at it, let’s replace the tires too. Pirelli Diablo Rosso III.

MOTO4U front and rear 17-inch tire warmer wing
Just wrapping it around the wheel should improve serviceability.
You stop holding your breath thinking “oh no, I’m going to scratch it,” and you don’t have to remove and install things in a vacuum state as much.

You want to push through work as fast as possible, right?
First protection, second protection, and it’s reusable and washable too!

Boom! Replacement complete.

That’s how it turned out! ☆
I replaced the tire with a manual tire changer.
Every time I think about it, I’m glad I bought it.
I only do tire replacements a handful of times a year. An electric changer seems a bit questionable when you consider the space and frequency of use. That’s when I found this item.
I don’t want to use tire levers anymore, and the risk is high.

When it comes to clutches, it’s FCC. If there’s a setting available, I feel FCC is better than using the original.
They must be using modern friction materials and processing lavishly.

When removing a diaphragm-type oil-cooled clutch, this tool comes in handy.

This is how you install and remove the bolt that sets the diaphragm spring retainer.
You tighten this from the back to ease the spring tension—that’s what this tool does.

That’s the configuration. Don’t you wonder why there are two?
It seems like an odd number.

Let’s measure the thickness of the new and old ones.
The old one was in good condition too.


The housing looks good too.




The oil sight glass is clean, so I just cleaned it.

That’s how it’s done.
Just check and assemble—bikes from the 1990s onward are so easy! ♪

For the machined through-holes, I always use a copper gasket instead of the original.
I feel this way is less prone to seeping and tightens securely, so it’s reassuring.
[Work progress]
● FCC clutch replacement
