Was wondering if there's a air mixture screw adjustment on the carbs. I see there's a screw in the front of the carbs but it looks like its more of a plug for the low speed jet. I've cleaned the carbs but my idle is still all over the place
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1977 evinrude 55hp
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Johny25
Well-known member
I believe you have a fixed orifice jet behind that plug/screw you are talking about. It probably needs cleaned is all. Then put back in and lightly seated : ) So there is no adjustment to be made, just clean it well. If there is anything in that jet your idle will be screwed up.
Johny25
Well-known member
I'm just a backyard mechanic....lol. But all I have worked on is the older johnson's, all pre 94'
