Plug fouling

Discussion in 'Dyna Models' started by odie1962, Oct 5, 2009.

  1. odie1962

    odie1962 New Member

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    I have a 2002 FDL which has the 88" twin cam. Problem is I have a problem with the back plug fouling, Not often but about every 6 months or so. Front plug looks fine but the back one is all black and covered with suet. causing backfires and such, any ideas?
     
  2. jaxdwg

    jaxdwg Active Member

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    If the plug has a shiney look when you take it out, rather than flat-black sooty, that is an indication of oil consumption----shiney is oil, flat is fuel