some clutch cables have a type of internal ratchet adjuster. You fit the cable to both ends, then pull the end of the cable (gearbox end) all the way out and it will 'ratchet' its way back in to self adjust.
didnt think the sierra cables were like this though as they have the gay ratchet adjuster on the pedal end....in fact thinking about it is the pedal adjusted properly on the ratchet?