Originally Posted by
Cooter
Look into the master cylinder and see theres two holes in the bottom. Look REAL close at the big hole and slowly activate the lever. You want to see the black piston seal pass the big hole, and return completely past it, back to open, as you release. If it's not returning enough or sticking it won't let fluid from the master into the line and won't have enough pressure to release the clutch.
The other hole (transfer port) is super small and needs to be cleaned out. A cheap set of Jewelers drills is perfect for this and can get the hard crust out, but I've had luck with a tiny needle, or thin stiff wire.