First, I recommend avoiding that condition. Take the plug out, aim the plug hole away from anything you like and turn the motor over with the electric starter for a few seconds. Any fuel should come out of the plug hole. Put a couple of drops of oil in the carb and in the plug hole (I said drops). Reinstall plug, turn engine over by hand a couple of turns slowly. If you want, you could then turn it a little (couple of seconds) with the starter but it isn't absolutely needed. Be sure to hold engine firmly or better yet clamp down somehow.