G'day Ardy,
Yup, Norm and Diesel might be right. There could well be other issues but the simplest and cheapest thing to try is: lubricate!
Just follow the system all the way from the front to the back with an oil can or wd40 or the like and if it moves ( or you think it might move) give it a good squirt. Pedal pivot, all linkage points, everything. Move the pedal to and fro with your hand ( engine stopped, of course
) so you can see mechanism move and squirt all points.
You're right to avoid the belts but also don't get any on the clutch faces (the largest drive pulleys and the discs that press onto them. Pop the seat up to get a good look and move the pedal to and fro again to get a picture of what's going on here. I'd like to see the area between the two drive plates (discs) given a small drink too - just the tiniest amount as excess may end up on the clutch faces. We are looking to get a bit of oil on the shaft under the fork and bearing between the two discs.
If you're still lost let us know and I'll post some photos.
It sounds like the park brake too may well be fixed with a little oil and exercise - hopefully. Same applies here : squirt all possible linkage or movement points and exercise the lever gently to try and free it up.
Cheers,
