So I'm having an issue getting the motor blades to engage. 
 
Recently replace the carberator and the engine runs smooth now but when I pull the blade switch, nothing, doesn't engage. 
 
But I did notice a strange thing.  Not sure if it's related to the blades but now when I sit in the seat, the little lcd display turns off.  Lift my butt off and it turns back on.  
 
Is my mower possessed now?

Model # of the machine and model # of the engine???
 
.

My bad that would probably help.  
 
It's model 247.204420 and the engine is a Kohler T8200
 
Thanks,