Craftsman Zero Turn problem

[The Lawnmower Man]

I have a craftsman zero turn 52" cut. When I pull the pto switch to engage the blades, the blades try to start, but it kills the engine. The pto switch is good, so what could cause this to happen?

 

[bertsmobile1]

Usually it is because the seat switch or the seat switch wiring is bad so the no operator in seat safety circuit is activated