its a 1959 i believe. there's 2 knobs on the front. one for lean/rich and the other for hi/low. when i got it everything ran perfect. a couple of times it crapped out on me and i had to fiddle with the knobs to get it to stay running. the lean/rich was easy to figure out and i stopped messing with that one, the other KNOB CAME OFF and now it can be rotated around and around which it is not able to do typically with the knob attached. the knob is easy enough to reattach but i know that it is not within the range it should be. is there a way i can fix that? like turn it all the way one way and then back a certain number of turns??
