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  1. #1

    Default 1987 48 hp johnson j48eslcus

    rectifier wiring 1 red 3 yellow

    dose it mater were the yellow wires go

    last one i placed according to the three plate wires that are yellow gray stripe 'yellow blue stripe and yellow dashed stripe

    can this cause engine to backfire?

    all new parts coils cdi plugs wires rectifier

    engine ran fine for a few starts and then started backfiring

    the rectifier wires have me confused

    thank you

  2. #2
    Join Date
    Dec 2012
    Location
    newport news, va
    Posts
    260

    Default Re: 1987 48 hp johnson j48eslcus

    yellow wires from rectifier to any yellow from stator, and red to red over to positive on starter relay
    stator and rectifier only charge battery, wouldn't cause backfire.
    you say "backfire" like bang out prop exhaust, or cough thru carbs
    got same motor

  3. #3
    Join Date
    Sep 2010
    Posts
    19,802

    Default Re: 1987 48 hp johnson j48eslcus

    Check the flywheel key !---Sudden backfiring is usually caused by a sheared key.---Only install a factory key.----Tapers clean and dry .---Nut torqued to 102.5 FT LBS.

  4. #4

    Default Re: 1987 48 hp johnson j48eslcus

    Quote Originally Posted by scalhoun506 View Post
    yellow wires from rectifier to any yellow from stator, and red to red over to positive on starter relay
    stator and rectifier only charge battery, wouldn't cause backfire.
    you say "backfire" like bang out prop exhaust, or cough thru carbs
    got same motor
    Bang out if exhaust

  5. #5

    Default Re: 1987 48 hp johnson j48eslcus

    big bang out of exhaust

  6. #6

    Default Re: 1987 48 hp johnson j48eslcus

    bad woodruff key. replaced runs great

    Thank you
    Brian

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