Motorcycle Repair: Clutch problem, honda sabre, slave cylinder

Question
I have a Honda Sabre 700.  After running for a while the clutch doesn't work anymore.  It's like it gets stuck.  After I bleed it, it works again, but it always stops working after it's ran for awhile.  What could be causing this or what do I need to do to fix it?

Answer
You may have a leak in the slave cylinder.  Try taking it off the engine and check to see if it's been leaking.  If you are at high altitudes, it could cause this problem.  When I was riding through the Rockies, my clutch quit working about 9000 ft.  It was pretty interesting because I had to go up another 2500 ft before I could start back down the other side.  Once I got back down it worked fine.

Regards
Rich