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Thread: power pack test

  1. #1

    Default power pack test

    How can I test a power pack on a V4 1985 Evinrude (single pack)

  2. #2
    Join Date
    Feb 2001
    Location
    Central West Florida
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    14,573

    Default Re: power pack test

    Do you have any spark at all... we could use a little explanation that makes a easy test available.
    We occasionally have questions. If you fail to answer, it may affect ours.

  3. #3

    Default Re: power pack test

    Yes.. it runs, but has an 'off-on-off-on-off-on' situation! I checked all the connections... all tight. Wires going to the power pack
    look good, no missing insulation. Not a fuel problem, definitely ignition!

  4. #4
    Join Date
    Feb 2001
    Location
    Central West Florida
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    14,573

    Default Re: power pack test

    I think you're saying that the engine has a sharp, rapid ignition breakup, cutting in and out constantly and fast. Is this at all rpms?

    Temporarily remove the black/yellow wire from the ignition switch (eliminates the kill circuit) to see if that has any effect. NOTE that removing that wire makes it impossible to shut the engine down with the ignition switch.
    We occasionally have questions. If you fail to answer, it may affect ours.

  5. #5

    Default Re: power pack test

    Yes.. constantly and fast! I was gonna unplug the main harness plug while running. Wouldn't that eliminate any malfunctions?
    Thanks Joe...

  6. #6
    Join Date
    Feb 2001
    Location
    Central West Florida
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    14,573

    Default Re: power pack test

    Unplugging the main electrical harness could, and usually does, damage the engines battery charging system, namely the voltage regulator/rectifier assembly. Never a good idea to run the engine without the battery which is what that amounts to.
    We occasionally have questions. If you fail to answer, it may affect ours.

  7. #7

    Default Re: power pack test

    Ok... I'll disconnect the kill switch, but I doubt that is the problem (tho I hope it is!)

  8. #8
    Join Date
    Dec 2015
    Location
    maplevalley WA
    Posts
    5,049

    Default Re: power pack test

    Disconnect the kill wire at the pack. If that cure the issue you needto find the intermittent short. Be careful never apply battery pos to the kill wire it will cook the PP in a split second.

  9. #9
    Join Date
    Nov 2005
    Location
    Mt. Zion, Illinois,
    Posts
    809

    Default Re: power pack test

    Quote Originally Posted by kingsbiship View Post
    Ok... I'll disconnect the kill switch, but I doubt that is the problem (tho I hope it is!)
    Joe does not mean to disconnect the BLK/YLW wire permanently. He's just trying to walk you through troubleshooting the ignition system. If the problem goes away with the wire disconnected then it leads you in one direction (kill switch or wiring), if the problem persists then you need to look at other components: power pack, coils, etc.

    KJ

  10. #10

    Default Re: power pack test

    I'm gonna get a power pack! It's the only thing that will make it act like this! (pretty sure) Anyone have a used power pack maybe?

  11. #11
    Join Date
    Apr 2010
    Posts
    4,308

    Default Re: power pack test

    Let us know what happens ????

  12. #12
    Join Date
    Jun 2012
    Location
    South Africa
    Posts
    213

    Default Re: power pack test

    Did you try the suggestion made by no less than 3 of the main contributors to the site?

    A short on the kill circuit or any other multitude of issues could be causing this and without proper trouble shooting you could end throwing part after part at a 33 year old motor, which could see you still sitting with this problem with hundreds of dollars spent.

    As an example something as simple as a faulty spark plug could also cause this (And just because it's new out of the box doesn't mean it works as it should.

  13. #13

    Default Re: power pack test

    Eng. still dies... not like before and rarely now! Fuel delivery was main problem! Primer ball was getting sucked flat.... restriction in tank!
    Removed sending unit for gauge and knocked off plugged sock (filter) at end of pick-up! Dies rarely for a second or two.. I'll investigate soon!

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