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1990 Evinrude 25 HP E25RESB Low idle problems

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  • #31
    Re: 1990 Evinrude 25 HP E25RESB Low idle problems

    does this model have a timing advance screw? Also does anyone know what the timing is supposed to set to?

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    • #32
      Re: 1990 Evinrude 25 HP E25RESB Low idle problems

      Sounds like air is being sucked in through the primer. When the motor tries to stall try spraying a little fuel mix into the carb throat.
      If it picks up you could have air leaking in or the idle jet is blocked.

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      • #33
        Re: 1990 Evinrude 25 HP E25RESB Low idle problems

        I jumpered a spark tester up while running the engine today and it appeared that the bottom plug was misfiring. The spark was not as good as the top plug either. Not really sure how to trouble shoot from here.

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        • #34
          Re: 1990 Evinrude 25 HP E25RESB Low idle problems

          Originally posted by tom071984 View Post
          I jumpered a spark tester up while running the engine today and it appeared that the bottom plug was misfiring. The spark was not as good as the top plug either. Not really sure how to trouble shoot from here.
          ISSUU - CDI Electronics Practical Outboard Ignition Troubleshooting by CDI Electronics

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          • #35
            Re: 1990 Evinrude 25 HP E25RESB Low idle problems

            Where is the idle adjustment screw on this engine? It is a tiller steer, pull start...thanks

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            • #36
              Re: 1990 Evinrude 25 HP E25RESB Low idle problems

              Originally posted by tom071984 View Post
              Where is the idle adjustment screw on this engine? It is a tiller steer, pull start...thanks
              Screw, top starboard side of carb

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              • #37
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                Did you ever resolve this?? I am having trouble with my '92 E25ELENS

                Runs at full throttle all day long but won't idle any more.

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