Pretty simple story. I ran over garden weed fabric which wrapped around the blades and stalled motor. I turned it all off, and unwound the fabric. When I sat back down with all kill switch points in place (parking brake, handles, seat, PTO off), I only got lights when turned on ignition. No cranking. Silence. The PTO clutch clicks when I engage it, so it's getting power. Nothing appears yanked, ripped, disconnected, out of whack, or out of line. What could have been jarred or ruined when the fabric brought things to a halt? I am completely baffled. HELP!