intake leak

Discussion in 'Softail Models' started by chil01, Oct 27, 2009.

  1. chil01

    chil01 Member

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    does a intake leak lead to a carbon buildup and would this make a spark plug have some black soot on it,It's only on the back jug thanks
     
  2. glider

    glider Veteran Member

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    Generally an intake leak will cause a lean condition in the cylinder effected and shouldn't cause carbon.
    Check the other cylinder for the leak.
    Carbon is usually a rich mixture if it is dry and fluffy and if wet and oily there is an oil control problem.
     
  3. chil01

    chil01 Member

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    thanks for the info
     
  4. Jack Klarich

    Jack Klarich Expert Member

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    Had problems with intake leaks here in Florida I think its the ethanol in the gas eating up the rubber parts in our motors also check for proper alignment on the intake with new gaskets MOCO has a tool for it Good luck