Backfiring when Starting

Discussion in 'Softail Models' started by MilitaryMike, Sep 19, 2008.

  1. MilitaryMike

    MilitaryMike Member

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    My bike (08 Heritage) is backfiring when I start it first thing in the morning or after it has been sitting awhile.

    Any suggestions, tried searching the forum for a similiar problem, no luck.
     
  2. glider

    glider Veteran Member

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    Could be a number of things like bad gas, bad temp sensor or this time of the year with colder temps and lean mixtures on the bikes. it will start backfiring even more.
     
  3. MilitaryMike

    MilitaryMike Member

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    Thanks Glider. Just thought I would throw out my problem to the forum.
     
  4. wildspirit97

    wildspirit97 Senior Member

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    my '07 FXST did that quite often before I put the Thunder Max W/ Autotune on it. Do you have any Mods? Pipes, Air cleaner, EFI tuner?
     
  5. rwar

    rwar Member

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    I've got 3,000 miles on a stock 08 Heritage, 70 to 80 degrees and mine started backfire on startup just this week.
     
  6. wildspirit97

    wildspirit97 Senior Member

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    if it just started I'de look into the simple things. Air filter, spark plugs, Bad gas, maybe even spark plug wires.
     
  7. MilitaryMike

    MilitaryMike Member

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    Thanks for the comments. I just upgraded to the 103 kit from a 96b. Have a great day.