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    1974 70hp Evinrude won't come up to speed

    The engine idles well and runs good/smooth at slow speeds. When I open the throttle it begins to rev but stops and the RPM's drop. If I work the throttle back and forth it repeats. Any ideas. There is good spark to all 3 plugs and the plugs are new. Thanks
  2. A

    1974 70hp Evinrude won't come up to speed

    The engine idles well and runs good/smooth at slow speeds. When I open the throttle it begins to rev but stops and the RPM's drop. If I work the throttle back and forth it repeats. Any ideas. There is good spark to all 3 plugs and the plugs are new. Thanks
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