You will see the gearbox arm just to the left of the battery. The easiest way to get at the nuts to adjust the clutch pedal is to remove the battery and the battery casing.
You will see the cable connected to a piece of metal that is then attached to the arm. Within this piece of metal will be a star nut. You can see it as it looks like the lid from a glass bottle of drink. on the other side of the metal is the lock nut. You will need to loosen this - but be careful not to twist the clutch cable round (just means that you won't be loosening the nut). Once it is loosened push the arm back until you can't push any further. Hand tighten the star nut (again being careful not to twist the clutch cable). Once you have hand tightened as much as you can unscrew it slightly with 3 turns and then tighten the lock nut. Put it all together and you will have a nice tight cable.
You can adjust the pedal as well to adjust where you want the biting point
Clive, August 2010
adjusting nut is usually on clutch release arm on gearbox,get someone to press clutch and watch the lever move at the g/box,sometimes has a locknut,screw nut in to raise pedal, out to lower pedal,good luck