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Misfiring

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  • Misfiring

    Hello everyone.

    Recently I bought a 2006 GSX750F. It pulls nice and runs great except from some misfiring.
    Its very noticable while idling and low throttle. Making a very jerky slow riding in town. Pretty annoying.
    As I open the throttle more than 1/4 the misfifiring is either masked by the pull or disappear. I dont know which.

    I have done some troubleshooting

    I installed new iridium plugs

    All following reading are within spec:
    Plug gap
    Plug cap
    Primary and secondary windings in the ignition coils
    Pickup coil
    Battery voltage
    Charging voltage
    TPS
    Cylinder compression

    I cleaned the carburetors and jets, checked fuel supply and dialed in the pilot jets.
    I cleaned all connections and checked engine ground.
    Disconnecting the battery while running makes no difference.
    I suspect the ICU.

    Are there anything else I need to test to rule out the ICU?

    Thanks
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