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  1. #1
    Join Date
    Jul 2017
    Location
    Corpus Christi Texas
    Posts
    1

    Question Mercury 305/5.0L vibrates around 1500-1700RPM

    Hello
    Trying to figure out what might cause a vibration that can be felt in the boat around 15-1700 RPM and it will come and go in a rhythmic fashion.
    This will happen regardless if in reverse, forward or neutral. One suggested change the sparkplugs and it did not change.

    thanks
    Thor

  2. #2
    Join Date
    Sep 2008
    Location
    Maryland - USA
    Posts
    6,765

    Default Re: Mercury 305/5.0L vibrates around 1500-1700RPM

    will it do it on the trailer??

    what does the prop look like?

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