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    mag54051 Posts: 1, Reputation: 1
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    #1

    Aug 19, 2014, 07:02 PM
    Harley engine performance
    2012 ultra
    22k miles
    103ci
    255 cam(screaming eagle)
    Rineharts
    Good air cleaner
    Reflased ecu with vision

    The engine stutters at low to med throttle, under hard throttle it pulls good.
    It does not allways stutter but frequntly.Has run well for 5K miles after upgrade in parts and tune. In the last few week started running poorly.
    ?

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