I have a Toro Wheel Horse 520Xi (1998 vintage). I tried to start it last night. It cranked over a couple of revolutions and started to run when everything died - instantaneous shutdown - no lights, nothing. The battery is new and voltage checks good. I checked the fuses, all 4 are good. I pulled the ignition switch, cleaned the terminals and checked operation with an ohm meter... all good. I checked the hot wire from the starter to the ignition switch, and it is OK. I checked the ground to the motor, OK. There are 3 relay's. I pulled them, cleaned the contacts and sprayed contact cleaner into the base. I tried switching them around... still nothing. Other than a satanic exorcism, I'm stumped. I'm out of work and really can't afford to take it in to be checked out. Any enlightenment would be greatly appreciated.