Here's a video of the smoke I was talking about.
BTW, when it's running, the PTO comes on like it's supposed to. But if you try to speed up, the PTO kicks off. As long as I stay at the same speed, I can mow for hours. But once I press it to go passed a certain speed, the PTO shuts off. Obviously, there's no speed sensor on this thing. And it has to be related to the electrical current. So I'm thinking safety switch? The seat switch is disconnected. (does the same with it connected)
With the PTO off, and the hydro pedal pushed about 3/4 of the way down, the PTO won't come on. But, at about 1/2 pressed, it'll come on fine.