Clutch weirdness.

I got the Tuono out for an hour today and when I first pushed it out of the garage I noticed that the clutch seemed to have nowhere near the resistance it normally has. I tried altering the span in case I had knocked it or something but it wasn't that and when I went down the road you could tell that it was biting as soon as you let it out and when I pulled into a lay-by just down the road I couldn't get it into neutral at all.... I came back home and git it back in the garage and pumped it a couple of times and it seemed to go back to normal and was fine when I went back out.
There's no leaks anywhere that I can see and the fluid is topped up although the top of the reservoir was not done right up tight, does it just sound like it was a bit of air in the system?
It's a gen 2 Tuono by the way, 16000 miles, stock master and slave cylinder.

davidrsurfer wrote: Bleed the master cylinder. Just a quick squeeze on the lever crack the bleed nipple open then shut job done.

Cheers David, I will have a go at that in a bit. Top man.