You say its a "stock clutch" which is a Borg and Beck. If the pedal doesn't come ALL THE WAY up on its own then either its out of adjustment or there's something binding.

You should have ONLY 3/4" to 1" of free play in the pedal. Any more is the reason the pedal won't come all the way up. Adjust at the fork rod. What this does is the pressure plate now moves the pedal back past the OTT spring and the small spring on the fork now has enough ommph to pull the pedal to the top.