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  1. #1

    Default 1987 E40ELCUD rectifier wiring diagram

    The rectifier on my 40 hp Evinrude has a red wire,(pos), 2 yellow wires with a blue tracer, and a solid yellow wire. Wouldn't the solid yellow wire be my negative? The way it is wired now, it has this solid yellow wire connected to a yellow with blue tracer, and one of the yellow with blue tracer wires connected to the negative.

  2. #2

    Default Re: 1987 E40ELCUD rectifier wiring diagram

    Quote Originally Posted by captain_stubie View Post
    The rectifier on my 40 hp Evinrude has a red wire,(pos), 2 yellow wires with a blue tracer, and a solid yellow wire. Wouldn't the solid yellow wire be my negative? The way it is wired now, it has this solid yellow wire connected to a yellow with blue tracer, and one of the yellow with blue tracer wires connected to the negative.
    There's no ground wire on the rectifier,the case is ground.one of your yellow wires should have a gray tracer.

  3. #3

    Default Re: 1987 E40ELCUD rectifier wiring diagram

    Should this yellow wire with the gray tracer be connected to the incoming solid gray wire?

  4. #4
    Join Date
    Dec 2012
    Location
    newport news, va
    Posts
    253

    Default Re: 1987 E40ELCUD rectifier wiring diagram

    look up your motor parts break down on this site, check ignition parts, the CDI rectifier has a tech info download that explains install and troubleshooting

  5. #5

    Default Re: 1987 E40ELCUD rectifier wiring diagram

    I would think,but i dont have my diagram in front of me.sound like you need a diagram and a service manual

  6. #6

    Default Re: 1987 E40ELCUD rectifier wiring diagram

    Quote Originally Posted by Rwbutler View Post
    I would think,but i dont have my diagram in front of me.sound like you need a diagram and a service manual
    Thanks for your help. I tested the rectifier, it is defective.

  7. #7
    Join Date
    May 2008
    Location
    Kent, the garden of England, UK
    Posts
    1,515

    Default Re: 1987 E40ELCUD rectifier wiring diagram

    Quote Originally Posted by captain_stubie View Post
    Thanks for your help. I tested the rectifier, it is defective.
    Be aware that the replacement rectifier may have 3 plain yellow wires ( there is no need to distinguish between them)which connect to the yellow, yellow/blue and Yellow gray wires coming from the stator coils. The red connects to two reds. The case should be grounded

    If you have remote electric starting. Red connects to purple/red and there will be a gray which should also be connected to the yellow/gray from the stator

    You will be able to find a copy of the Seloc manual, including a wiring diagram, which covers your motor on the Boatinfo website. Sorry link not allowed on this site
    Last edited by vics; 06-07-2020 at 08:14 AM.

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