clutch troubles
 

any suggestions for unfreezing the clutch on a 100

You might try locking the clutch pedal down and then using a scraper blade to try and pry between the clutch disc and pressure plates.

depending how bad its stuck you may be able to tap a smaller-thinner flatblade screwdriver between the pressure plates and the clutch disk, working it in all around evenly, but be careful not to damage the disk. A little wd-40 spayed in there doesnt hurt either!

thats what i was thinking just didn't want to start tearing things up thanks

Any WD-40 that gets on the friction disc will make the clutch slip. Leave that in the toolbox...

I just got done working on the same problem. Clutch in one of my 122's went bad. Took the clutch off the parts tractor put it on and found the clutch i just put on was frozen. I ended up taking it out and taking in apart. Even with it being in a vise on the work bench it took a little muscle to get it apart. Had to remove all the pins put plate in vise and hammer the shaft lightly to loose it all up with the help of PB Blaster spray. The 2 plates were rusted to the disc and the shaft ( Plate were toasted and Clutch pad Bad). This parts tractor had been outside for years. If you go to all this trouble my advise is to completely rebuild it. Get a stainless steel shaft and have the plates turned. Now is the time or you will end up doing it later.