Hello. I lost my reverse gear so I took out codder pin on the arm that adjusts the gears and adjusted the screw ro allow arm to engage reverse. I fired it back up and reverse worked and neutral was in correct location again. I put the cotter pin back in, put it in neutral and tried to start. I'm just getting a clicking noise. It is in neutral, I sanded the spark plug and I currently jumping it to my truck. I feel it is a safety switch but not sure how to bypass to make sure. Blade is up also. Any suggestions or a diagram to bypass safety switch?