The interlock switch for the clutch. The battery, starter,etc is good. This is about the only thing that I can think of that is left. It's a 20hp Briggs, 46" CUT riding mower, craftsman. I just need to know how to get the switch off.

Hi,
I gather this is the blade(PTO) switch and it is usually in the steering pedestal though it is sometimes under the right running board. It simply a matter of unplugging the wiring and removing one or two screws and putting a new on in by taking the reverse route.
Peace,
Clarke