I just read a reply you made to a post below called "choke trouble" and it made me curious about something.
I noticed as you said that when the choke is cold you press the gas pedal once to move the choke fully closed. When I do that the choke goes to the highest step as it should. However, as soon as I press the pedal again it moves about halfway down the notches and of course that makes the engine falter. Does it sound like the choke needs adjusting? Or am I doing something I shouldn't?