I just purchased a '64 Evinrude 5.5 hp Fisherman, model 5402B and the choke knob is missing. By looking at other peoples pictures of this engine it should have a white choke knob with a T handle. The part number from the manual is 205280. I ordered one but it will not work as it has 2 points sticking out of the side and will not go through the cowling hole. The one I received is black with a round knob. It turns out that there are 3 different choke knobs made with the same exact part number stamped into them, 2 are black with round knobs and one white with a T handle. My research shows that only the 1964 model used this particular knob. Has anybody else ran across this or does anybody know where I can get the right knob? Oh, and this same knob is not used on the Johnson 1964 5.5 (unbelievable).