Where is the fuse on ranch king mowers?

There are many different Ranch King models. But, if it is a front engine riding mower and has the reverse/forward shifter between your knees, it will have the fuse underneath the plate that the R/F shifter comes through.

Generally most riding mowers have the fuse very close to the solenoid. You will find the solenoid by following the positive battery cable from the battery to the opposite end.