GS1200SS Nissin radial brake & clutch master OH, clutch release OH, engine oil change and more

The mysteries of the job…

Don’t you sometimes get the same vehicle coming in endlessly?
GS1200SS, Bandit, GSX-R, GSF, Inazuma, GSX1100S and so on…
Wait? Only Suzuki…

Our shop is over 80% Suzuki… I wonder why.

We’ll replace the clutch release cup.

It won’t improve dramatically, but the initial play can sometimes decrease.
Maybe the lag where the cup umbrella snaps and spreads out reduces?

I’ve finished it cleanly so it moves smoothly.

Left is used,
right is new.

The used one is slightly swollen and squishy.

CCI Metal Rubber MR20

Can also be used for working out after caliper cleaning.
OK for caliper, master, and release OH too!

It works so smoothly that you think, “Wait, did I get better at caliper OH?”

It’s good to keep one in your toolbox.

Please do an OH on the caliper too if it’s like that.

Hmm, it’s not that bad, so we’re putting this on hold for now.

We’re going to OH the Nissin radial master.

When this master gets old…

• The touch doesn’t come back right away even after a fluid change
• The piston won’t come out even after cleaning and working the caliper

* It feels like the push is weak somehow. And then after a little time passes, wait, huh?

Maybe it’s just me… but this improves immediately when you replace it with a piston cup kit.

Ordering from the motorcycle shop is a pain…

There are old and new versions, and it seems you judge by whether the hose comes out from the “top” or “side”.

The connector gets replaced too. Isn’t it surprisingly seized up sometimes?

Replace this too, apply CCI Metal Rubber MR20, and assemble it so the joint spins smoothly and you’re good.

The hose we want to replace is the vent hose.

Just the vent hose costs over a thousand yen…

Well then, should we go black on the tank… but black hoses are sold separately.

Hmm, so we went with a standard tank set. If you think of it as including the diaphragm, it’s pretty reasonable.

The brake is the old type,
and the clutch is the new type.

This is the clutch. As always, nothing particularly wrong with it…

This is the brake, but nothing particularly wrong with it either.

Even comparing old and new, it doesn’t look that bad.

I always check the length, diameter, and shape carefully before assembling.

Before assembling, I completely dry it in the oven before putting the brake parts together.
* No need to get it super hot. Just drying the cleaning is OK. I’m worried even with just air blowing, so

That’s how I put it back together. The touch comes right back and feels good.

If you change the fluid or clean the caliper and think “wait, something’s off?”, I think it’s worth doing an OH.

I also changed the rear fluid.

I want to finish the rest too, but…

I’ve got a mild case of lumbago, and when I stand up or sit down
it’s “ouch, ouch, ouch…”

It’s a problem. More to come.

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