Here are the details: Encore Z48 with Kaw 19hp--270 hrs. New plugs, oil, air filter. Was running awesome...until today.... Cruising along just fine and from out of nowhere the thing just shuts down.. So I think... "hmmm, that was odd" and tried to restart it. It just clicks, I check to make sure my brake is on...it is. Also hit the button to disengage the blades because they were obviously engaged when it shut down in the 1st place, however, since mower isn't running I can't tell if doing that actually "did" anything. Could it be that the engine thinks the blades are still "on" which is keeping it from turning over? If so, how would I disengage the PTO if it won't start? And...why might it have shut down in the 1st place? Any help would be greatly appreciated.