Witch is the + and - on coil for 1976 harley 1000 don't know witch is + or - on coil.

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Hi Ronnierowe10, if there are no markings on the coil terminals put a red dot of fingernail polish next to anyone it does not matter just hook all of your positive wires to the red dot terminal and negative wires to the remaining terminal. Good luck and have a nice day.
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