By all means, pick up a carb kit (about $15 or so) and go through the carb.
Should have been one of the 1st things to do with a carb of unknown condition and sitting for a long period of time.
Should be many tutorial threads on here pertaining to how to do that.
This one comes to mind
https://s3.us-east-2.amazonaws.com/c...rb+Rebuild.pdf