What exactly is the throttle knob used for on the dash? To be used in conjunction with the choke for warming engine up in cold weather? For use with a PTO? Mine was disconnected and haven't needed it yet, getting ready to redo interior and wondered if i should just do away with it, I'd like to know what it's original use was and if everyone keeps them.

[Linked Image from i1188.photobucket.com]