[Cub Cadet 1650]

So here is where I am now. I did what you all told me to do and I got the old girl to start but the key switch still doesn't work. I replaced the solenoid and the V/R and still nothing. what are you supposed to do to the V/R to get it to work I don't have the instructions anymore and could use the help. I tested the switch and it was getting power when I turned it to the first notch and the next notch but now im not getting anything from the switch. Im tempted to buy a new switch and a new wiring harness and say screw it to this mess. I need a plowing tractor before snow starts flying or ill be in trouble this winter...