I just started using a Craftsman II "30ne Plus" lawn mower, which was made roughly a dozen years ago.
There is no control lever/cable for choke or throttle. There is a lever on the body, for throttle. Near to that is some device: it has a soft black rubber covering which is hollow, and shaped approximately like a 1" inverted cup. There is a small hole in it. I can depress/collapse it, but not pull it. Is that rubber thing related to a choke? If so, can it be set, or is it somehow automatic?
Or is choking accomplished merely by setting the throttle lever to the minimum position? If so, what's that black rubber thing for? Thanks.