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Pinned Multimeter Coil Test – Twin lead coils

Discussion in 'Yamaha 250cc In-Line 4's' started by GreyImport, May 28, 2017.

  1. GreyImport

    GreyImport Administrator Staff Member The Big Cheese Contributing Member

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    Multimeter Coil Test – Twin lead coils



    Primary : multimeter on 200 (ohm side)

    probes on + and - terminals of coil

    primary should read around 2.8 ohms


    coil test 1.jpeg


    Secondary : multimeter on 20K (ohm side)

    The secondary windings are isolated from the primaries. These are double-ended coils, so measure the resistance through both spark wires (without the caps).

    secondary should be around 15K ohms


    coil test 2.jpeg
     
    • Informative Informative x 1

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