OK, a mechanical genius I am not..that is why I am here. I have an old Craftswman 18hp riding mower (917.254860) that my son was using the other day that "just quit". I am fairly certain it is an electric issue and wandered if I might ask a few troubleshooting tips? There is absolutely no sound or response when turning the key on. Checked: Battery is fully charged and cables cleaned/tightened. I replaced the key/switch assembly. I bypassed the switch under the seat thinking maybe that was it. 0 volts on the starter lead when key is turned on. Does anyone have any suggestions or possibly could give me pointers on where to take voltages for troubleshooting? Thanks The Limabean.