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Thread: Checking coil in a YT125

  1. #1
    RudeDog666 is offline At The Back Of The Pack Arm chair racerFirst time rider
    Join Date
    Sep 2009
    Location
    Frozen Tundra
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    164

    Checking coil in a YT125

    I believe I have a bad coil in my Yamaha YT125. The resistance test gave me:

    Primary 5.4 ohms
    Secondary 5.8 ohms

    Bad coil right?

  2. #2
    Join Date
    Nov 2008
    Location
    Coon Rapids, MN
    --
    956
    This is what the haynes manual says.

    Primary winding resistance-1.0 ohms
    secondary winding resistance-5.9 K ohms

    pickup coil resistance-10 ohms
    ignition charge coil resistance-300 ohms
    1982 Yamaha YT125 tri-moto - Boyesen power reeds, YT175 front suspension, Headlight guard.
    1982 Yamaha YT175 tri-moto - Running but ugly
    1984 Yamaha YT 60 tri-zinger - Boyesen power reeds



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