Just for future reference, on these tractors (and many more) you can't just tie it down. There are 3 or 4 different positions in the switch. If you take a new one and test it between the wires, you'll see continuity at one angle of the paddle, then no continuity again if you push it down further, etc. It changes with the angle of the paddle. If it's bad, replace it...don't tie it, don't bypass it, just fix it correctly. It is the most reliable and honestly the right way to do it.
Years ago when I worked at a JD dealer, a customer brought in I think it was a 770 CUT that would not stay running with the PTO on. I diagnosed a fuel starvation, replaced the filter and flushed the tank and lines, then re-tested with no more problem. Sent it out. Guy calls back says it's doing the same exact thing, I tell him to bring it back to me and I'd address it again. He said he was too busy putting out food plots (for deer hunting) and was going to bypass the seat switch to try it. Never heard anything else for a month or more. His son bought the tractor back to me in I think November, said his dad was tilling some ground, hit a root, got off the tractor to pull the remainder of the root out of the way and kicked it into gear while getting off. Tractor ran over him and tore him up pretty good. I went out and looked at the tractor to find that the seat switch had been bypassed with a paper clip, then I guess he must have forgot about it since it was working well enough to get the work done. If he had the tiller still running, he'd have been guaranteed crow bait.
Then a guy who worked for me (same dealer) went out on a service call to look at a used L4200 Kubota, inspection for trade in (trade on a 5300 JD, as I recall). Anyway, during the inspection, he reached over, hits the key, and the tractor took off and ran over him. Again, owner had bypassed the seat switch and every other switch. Broke femur, out almost 4 months.
