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  1. #1
    Seaman Apprentice
    Join Date
    Feb 2004
    Location
    canada
    Posts
    39

    Default 1959 v4 50hp johnson electrical

    i,m trying to hot wire this boat motor to see if it runs there,s one black wire to dis and i don,t know if it,s a ground to kill the motor r 12volt batt?

  2. #2
    Commander
    Join Date
    Dec 2001
    Posts
    2,505

    Default Re: 1959 v4 50hp johnson electrical

    Hi JoeIt sounds like you need to do some home work on this motor before you procede. This model uses a magnito, point ignition, it requires no battery to funtion. The electrical system of this model can be broken into three separate systems. An ignition system, starting system and sometimes a charging system. Often motors of this era did not have a charging system. The charging system was available only on the top of the line model or added to a lesser model at added expence. There is tons of info avaiable on how your systems operate. It would be prudent for you to read up and understand what you are trying to do.

  3. #3
    Seaman Apprentice
    Join Date
    Feb 2004
    Location
    canada
    Posts
    39

    Default Re: 1959 v4 50hp johnson electrical

    i understand what u r saying i test the dis and i,m getting a very weak spark i think it the coil because i check out the points and they look good i can,t wait till my manual comes inbut all there is to this motor is one wire forgroundstarter +electric chokeand a black wire to dis

  4. #4
    Cadet
    Join Date
    May 2006
    Location
    SAN DIEGO
    Posts
    1

    Default Re: 1959 v4 50hp johnson electrical

    Originally posted by alcan: Hi JoeIt sounds like you need to do some home work on this motor before you procede. This model uses a magnito, point ignition, it requires no battery to funtion. The electrical system of this model can be broken into three separate systems. An ignition system, starting system and sometimes a charging system. Often motors of this era did not have a charging system. The charging system was available only on the top of the line model or added to a lesser model at added expence. There is tons of info avaiable on how your systems operate. It would be prudent for you to read up and understand what you are trying to do.
    Alcan;I would really like to do the homework on the magnito point ignition system (1988/J25LRCCA),but I don't know where to look. My husband lost his eyesight, but wants to do the repairs on this motor. So, I'm his researcher. This is the problem: sparks fine, but won't idle. I would appreciate any guidence you can give me so I may find the answers to his questions. Thanks, Mrs. Cardog Wood

  5. #5
    Captain
    Join Date
    Jul 2001
    Location
    Oakhurst, Oklahoma
    Posts
    3,194

    Default Re: 1959 v4 50hp johnson electrical

    On those old mag systems, I'll bet that the thing has never been opened up and the bearings lubed. Mine was very erratic until I did just that, smoothed right up.joe dirt, clean it up inspect the coil if it has cracks in it then replaced it.cardog, welcome to iboats, you really should start a new thread for yours. There is a lot of info in this forum on these and good people here to help. Sounds like you have a carb problem though.Richard

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