Re: Mercury model 40 4 hp choke Home › Forum › Ask A Member › Mercury model 40 4 hp choke › Re: Mercury model 40 4 hp choke ronboonvilleReplies: 83Topics: 56 September 10, 2018 at 8:36 pm #82587 Thanks rco, it did just pop off, just when I turned my head. I was lucky and found the spring in the grass! Now I I just need to find some fittings that will work.