Re: Top speed with 18hp Evinrude on 14′ aluminum

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January 12, 2017 at 10:23 am #50874
billw
Participant

    US Member

    There are a lot of possibilities but I would start with the compression. I have found that 18s can be all worn out and still idle like a watch. They will start instantly and yet have no top end. A good 18 should have 120 psi compression or better.

    Long live American manufacturing!