I have an old Sears lawn tractor, model # 917-254520, and it will not start. It does not turn over and makes a clicking noise when attempts are made to start. I have had the battery checked and is okay. I was told by someone that it could be a solenoid. If so, where is the solenoid located such that I can have it tested or replace it?

Remove the center console cover between your legs. Look here for the solenoid.