beside my lights on my dash going out this is the only issue that keeps happening to my S2000.
My Clutch goes dead right to the floor. i check the fluid and its empty. Happens to me like every 6 months and come out of nowhere.
When it happens I pull over and take it to my family shop and can't found a leak anywhere.The slave it like 30k old and it fine no leaks. the only thing is the fluid is super dirty even for being 6 months old . i really dont know what to do. anyone have an idea.

 

Interesting I drop a tad every 20ish too. I've never found the leak, none on the ground and none on the tranny.

 

The Pedal doesn't slowly die it just happen all at once when it happens to me

 

I read that s2000's clutches commonly leak, if you follow billman's clutch fluid replacement technique it should help clear up your clutch fluid.

One day I found my master cylinder empty, topped it up and now i frequently check its level. Top up as needed.

 

Check below the clutch pedal, I bet the carpet is wet with brake fluid...

 

i did that already its dry.

 

Mine does the same. Every few months its empty and I lose all pressure. I try and check the reservoir every time I check my oil

 

When this happened to me, I thought the carpet was dry too. But then I put a paper towel on the carpet above the dead pedal (horizontal area, closer to the brake pedal side) and pressed down hard, it absorbed a good bit of fluid, which black at this point.

The clutch fluid usually leaks out of the shaft that moves through the firewall. That's probably a bad description, but stick your head in the foot well, press the pedal with your hand and see where the shaft moves. You'll probably find a little bit of black clutch fluid you can wipe up.
I saw a post from Billman saying it was normal and to change out the fluid in the master every few thousand miles to keep it clean and leak less.

Since it's low, you'll probably want to make sure there's no air in the slave cylinder either. I'm not sure I was able to bleed all the air out of mine, but it's operating pretty well still.

Out of slight paranoia, I've been doing a quick visual check at the gas station each time I fill up, while checking the oil.

 

So i took the S2 to the dealer for the recall on my brakes booster. and asked to check the clutch out. They told me the master cylinder has a small leak. So ya i guess im gonna change it and see what happens.

 

As for replacing the Master Should i do OEM or is there a Better Aftermarket one. I found Omni Power but im tring to find reviews