[DonC]

Buzz:
The clutch slave cylenders are often spring loaded to the extended position and the adjusting rod can be pushed back in until it bottoms out. This is where you start your adjustment.
Once the rod is bottomed out adjust the length until you have about 1/8 of an inch free travel in the fork that controls the throw out bearing. You want to insure that the clutch is fully engaged when the pedal is all the way up.
DonC