You want to have about 3/4 to 1" of free play at the pedal before you feel resistance,so the pressure plate fingers wont be in constant contact with the throwout bearing,and keep the disc from being fully engauged ,with no slippage...the adjustment is done on the linkage by moving the position of the peice that goes onto the fork by moving its position ,usualy has two nuts on it and a few inches of threads for adjustment..