scag tiger cub with kohler engine . safety switch issue maybe? i can turn key on and pull up pto switch and it will energize clutch. i can do this without engine running or sitting in seat. i checked all safety switches and they operate correctly. starter will not energize when i try and start the mower. i did jump to the starter and engine will run fine untill i energize pto i guess there is a short somewhere maybe or bad key switch? scratchin my head.