Turn Signal Problem - Don't know where to start

Discussion in 'Motorbike Technical Discussion' started by Fred, Jul 1, 2006.

  1. Fred

    Fred Guest

    I have a 99 CBR F4 and recently dismantled all the plastic to do some body
    repair. After completing the repair, the first piece to be re-inslled was
    the front upper cowl. Here's my problem: After mounting the uppder cowl, I
    decided to test the turn signals and noticed that the flash of the left
    blinkers, both front and back, are at least twice as fast as the right hand

    On a hunch, this is what I did next to troubleshoot this problem:

    1. Disconnected the front left wiring from the the harnest so that only the
    left rear and both right turn signals were connected. Result: The left rear
    still flashes twice as fast as the right side.
    2. While the left front turn signal was disconnected, I switched the wiring
    of the rear signals. Result: the right rear turn signal flashed twice as
    fast as the left side. This at least tells me that the problem cannot be
    with the bulb or the turn signal itself, otherwise, the problem would still
    be with the left side.

    I'm guessing that the problem is with the turn signal master switch, or,
    that I have a short someplace in the left side of the turn signal harnest.

    I know pretty much nothing about the electrical system but I'm willing to
    try spending my weekend finding the solution.
    Suggestions welcomed!

    Fred, Jul 1, 2006
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