Pro ran until I engaged clutch switch. It coughed, sputtered & quit. Re-started, pulled clutch switch, it coughed, sputtered, quit & blew 20 A fuse. New fuse, drove tractor, engaged clutch switch. It coughed, sputtered, quit and now I can't get engine started. Lights work, engine won’t turn over. Removed clutch switch, ignition switch, quick disconnect plugs, sprayed all with electrical contact cleaner/looks fine. Ignition switch not checked for continuity/suspect starter solenoid or starter itself.