If the clutch is biting somewhere in the middle of the pedal travel, then don't bother adjusting it. If you are not happy with the adjustment, then find someone or something that will hold the pedal upwards as far as it will go. Then find the clutch cable adjuster under the car (it is where the cable goes into the bell housing). Pull the cable outward to take up the slack and release the 17mm lock nut. Turn the 18mm adjuster to give you 20 - 25 mm of free play on the clutch pedal.