This is my first post here and need help. Purchased my 3300 a little over a year ago and love it. I have almost 100 hrs on it and until today it has preformed flawlessly. What ever switch is not closing to make the small black and white wire to the starter not energize has me baffled. I have tested the two switches under the seat and they operate fine. It looks as if there might be more switches involved in this circuit than just those under the seat? I can start the tractor by jumping from the big wire to the small one on the starter as long as I am sitting on the seat if I get up it will die. This has never been like this until now. I could get off the tractor and it would run fine. Where do I look next? I Don't have a wiring schematic as that would help a bunch. Thanks for any help.