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Ignition coil wiring question

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    Ignition coil wiring question

    Another plea for help please

    Looking to change coils on my 1980 GS1000G

    Do the orange/white cables both go to +ve connections on the replacement coils - can't see polarity marked on the wiring diagram Thanks

    Thanks Nick

    #2
    Yep, orange/white is the positive feed from the ignition switch via the killswitch to the coils. The other wire on each coil goes seperately to the ignitor unit.
    ---- Dave
    79 GS850N - Might be a trike soon.
    80 GS850T Single HIF38 S.U. SH775, Tow bar, Pantera II. Gnarly workhorse & daily driver.
    79 XS650SE - Pragmatic Ratter - goes better than a manky old twin should.
    92 XJ900F - Fairly Stock, for now.

    Only a dog knows why a motorcyclist sticks his head out of a car window

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      #3
      On some coils, there are no markings for + or -. It only matters if the inner core happens to be grounded.

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        #4
        Thanks for the replies

        Will plug them in and see if it starts

        Thanks Nick

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          #5
          You might want to see what voltage you are getting on that Orange White. I've seen it lower than 10v on some bikes due to resistance in the switchgear or loom. Some perform a "relay" modification in order to get full 12v back to the coils using the Orange/white as the switched live to activate the relay. There is a bunch of info here on it if you search.

          Good luck!
          1980 GS1000G - Sold
          1978 GS1000E - Finished!
          1980 GS550E - Fixed & given to a friend
          1983 GS750ES Special - Sold
          2009 KLR 650 - Sold - gone to TX!
          1982 GS1100G - Rebuilt and finished. - Sold
          2009 TE610 - Dual Sporting around dreaming of Dakar.....

          www.parasiticsanalytics.com

          TWINPOT BRAKE UPGRADE LINKY: http://www.thegsresources.com/_forum...e-on-78-Skunk/

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