i just bought a used simplicity riding mower,its a 2014,looks like brand new,the problem i have is when the pto is engaged it runs for a split second and kills the engine,everything worked when i got it ,the belt is on correct,and bearings not froze,its not the deck,its like you turn the mower off,if you push the pto back in fast the engine will still run ,installed a new pto switch ,same problem,is it in the wiring???