[Farlander]

Was starting and running fine, then sat for a few weeks.
Then, would start and stall with 10-20 seconds.
Changed the fuel, sprayed some carb cleaner down the fuel line to the carb, used a little pressurized air on the hose, and it started and ran great!
Ran for 15 minutes, then went to mow, as soon as PTO engaged, stalled out and would not stay running, same symptoms as before.
Hour meter intermittent, the warning lights blink on and off too.
Thoughts?
I suspect: bad carb fuel valve, bad fuel pump, bad ignition switch, bad PTO switch.
Thanks!