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Results 1 to 6 of 6
  1. #1

    Default johnson 1979 25 hp model 25R79R

    i am having problems with this motor having no spark it ran fine when i took it off my jon boat now i put it on my pontoon and i cant get spark. i have checked the statorand everything else with a ohms meter and everything seems to be fine. I am confused can someone pls help me out.

  2. #2
    Join Date
    Feb 2001
    Location
    Central West Florida
    Posts
    11,985

    Default Re: johnson 1979 25 hp model 25R79R

    Does this engine have a wiring harness leading to an ignition switch, or simply to a push button to stop the engine from running? If a wiring harness, does it also have a kill switch & lanyard?

    Remove spark plugs. disconnect the black/yellow wire from the powerpack. Do you now have spark?

  3. #3

    Default Re: johnson 1979 25 hp model 25R79R

    yes it does

  4. #4
    Join Date
    Feb 2001
    Location
    Central West Florida
    Posts
    11,985

    Default Re: johnson 1979 25 hp model 25R79R

    I assume that you're saying that it has spark with the black/yellow wire disconnected?

    If so, how about this question that I asked (below).

    "Does this engine have a wiring harness leading to an ignition switch, or simply to a push button to stop the engine from running? If a wiring harness, does it also have a kill switch & lanyard?"

    You need to spell it out for me to eliminate a lack of communication.

  5. #5

    Default Re: johnson 1979 25 hp model 25R79R

    yes it has a wiring harness leading to the ignition and i have no spark with or without the black and yellow hooked up

  6. #6
    Join Date
    Feb 2001
    Location
    Central West Florida
    Posts
    11,985

    Default Re: johnson 1979 25 hp model 25R79R

    That problem is usually due to a failed powerpack.

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