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Why does engine shut off after running 30 minutes and restart 30 minutes later?

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  • Why does engine shut off after running 30 minutes and restart 30 minutes later?

    1996 Evinrude 70 HP Outboard Model E70TLEDA
    Serial number G03953494

    Engine starts and runs great for about 40 minutes and shuts of (idle speed), moter turns but will not start until about 30 minutes later.

    Have replaced water pump, tested power packs after it shuts down and they still have good fire. Also tested temperature sending unit after shut down and seemed fine, checked fuel.....

    Any ideas on what could be the problem.

    Thanks

  • #2
    Re: Why does engine shut off after running 30 minutes and restart 30 minutes later?

    Start with the basics... When it "Shuts off" do you have spark?
    As with virtually any gasoline engine thats not running your first step in diagnosing the problem is to determine if the issue is electrical or fuel related.

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    • #3
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      Re: Why does engine shut off after running 30 minutes and restart 30 minutes later?

      What is the condition of your primer bulb when the engine quits? It is normal to be soft, but it should not be sucked flat. If it is flat, check the venting of your fuel tank.

      When it tries to quit, have you tried pumping the bulb?
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