O.K. So I pulled the top off my carb cleaned out all the passages , jets, all openings, my left eye. Btw carb cleaner burns. Anyways cleaned it all up, put it all back together, started it back up. Still idled like crap. Sprayed around the back with carb cleaned, idle smoothed out. I believe there is a bushing on the main shaft that your throttle cable connects to. I believe that bushing may be worn out causing it to suck excess air, causing a rough  idle. I would pull the air cleaner assembly, start it spray carb cleaner on that shaft where it goes through the carb and see if your idle picks up. I will start a new post to see if this is causing our bad idle.