Idle Drop

Question for Fix My Hog Premium member. 2007 Harley Davidson Ultra Classic. When I first start out on the bike, she will backfire when down shifting and cut off when coming to a stop with the idle dropping from 10,000 to 0. After riding for about 10 miles, this problem usually subsides and she idles fine around 10,000 rpms. Any suggestions?

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Fix My Hog Answers Back firing when down shifting is probably decel popping. This is caused by a lean condition. If you have a Power Commander or Vance & Hines FP3, you can add fuel @ 0% throttle. The FP3 also has an auto tune feature and another section designated to decel popping. As for the m/c stalling – Check for trouble codes and check for an intake leak.

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2 Responses to “Idle Drop”
  1. Tyrone Sanchez
    Tyrone Sanchez

    My Dyna was backfiring yesterday, then I heard a loud pop and the oil dipstick popped out…what caused that to happen

    • Customer Service
      Customer Service

      Hi Tyrone,

      I’d love to submit your question to our experts! Could you please provide the bike’s year for us first, please?

      Thank you!


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