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    jeovanr's Avatar
    jeovanr Posts: 1, Reputation: 1
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    #1

    Mar 28, 2010, 07:14 PM
    Why is there no power going to both of my middle spark plugs on a fzr6 1991
    I have a 91 yamaha fzr6 and I'm getting spark on the left and the right but not in the middle ones why is that?
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #2

    Mar 28, 2010, 07:17 PM

    Distributor cap, wires or rotor. There may be carbon traces in the cap.
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
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    #3

    Mar 28, 2010, 07:30 PM

    Carefully examine the middle spark plug wire for cracks, which are allowing it to short out to ground. Replacing the wires will likely solve the problem.
    KISS's Avatar
    KISS Posts: 12,510, Reputation: 839
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    #4

    Mar 28, 2010, 07:45 PM

    Also check wire routing. Wires that are next in line in the fireing order should not run parallel right next to each other.
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