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  1. L

    white chalky residue

    Can someone tell me what causes the white chalky residue around the head gaskets, and should I be concern. I replaced them last spring. Thanks
  2. L

    Tachmeter connection for idle rpm set

    where do I hookup my tachmeter to monitor the rpm while setting thd idle on a 1987 90hp envinrude. Thanks
  3. L

    can't remove impeller

    After removing the housing on my 1987 90hp Envinrude the impeller remained on the shaft. I tried prying it with a screw driver and didn't it didn't budge. Is there method for removing the impeller when it's stuck to the shaft? Thanks
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