Excessive changing of Spark Plugs

Discussion in 'Softail Models' started by kolor_ijo, Feb 23, 2013.

  1. kolor_ijo

    kolor_ijo New Member

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    my harley softail heritage 1998 1450cc
    carburetor keihin 40mm rebuild coil crane came.

    may problem.....often replace spark plugs (sparkplug quickly die)......please help me....what happen
     
  2. HDDon

    HDDon Experienced Member Contributor Retired Moderators

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    Is this something that just started? When you say sparkplugs die do you mean they foul, become black and sooty?
     
  3. 90FXRS

    90FXRS Junior Member Contributor

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    Wondering the same thing. Have you made any changes in the motor? Is the electrode burning? A little more info and maybe a picture of the plugs would help.
     
  4. Breeze3at

    Breeze3at Well-Known Member

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    There are so many possibilities. OEM plug wires have carbon based cores and eventually break down, carb. diaphragms tear or get stiff and can cause rich conditions, rings and compression can be worn. Tell us as much as you can about the bike, the history that you know, and if the problem happened gradually or quickly. Don't worry about writing a long post, there's good troubleshooters on this site, and detailed information is their ammo.
     
  5. Jack Klarich

    Jack Klarich Expert Member

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    Welcome to The Forum, More info will be a big plus, How old are your wires, do you have a coil cover, some times the wires will short out on the cover, is your carb set correctly