I have a 2004 Husqvarna lawn tractor GTH 2548B, serial # 081604B003442 with a Kohler Command 25 CV 730 with an electric pto problem . It runs good and has low hours of usage and well cared for. When I pull on the pto starter switch for mower deck it starts to run for a few seconds then stops the engine dead like it grounds out. just put on a new pto switch and installed a new ignition key switch which did not help. I temporarily bypassed the only two cutoff switches ( seat and clutch brake switches). I need some help and suggestions on this problem