Ok so I figured out that my HST pedal switch is out of adjustment so that when I get off the tractor it stalls. I remember reading a thread on here about that and that's how I knew it was a problem once I checked out that the seat switch was working the relay. The problem now is adjusting it, it's almost impossible to get a wrench near it, plus the the nut is huge- looks like around 27mm - a huge wrench. I'm thinking if I take the back tire off I might be able to get to it but the tire is loaded, fun times. Anyone have to do this yet? Is that the way to go? It's a B2620.