really,really hot!!!!!

Wait a minute. That's a dumb ass comparison. Sorry, but I just had to say it. Choking someone has nothing to do with the temperature at which a two stroke internal combustion runs.

Barring any binding in the drive train or clutch or excessive running over tall grass or similar terrain, the temp of the engine is controlled by the fuel air mixture. The richer the mixture, the cooler the engine will run. The leaner the mixture, the hotter it will run.

Given any particular needle setting, choking off the air richens the mixture. A dirty air filter will richen the mixture.