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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http://www.fixmyhog.com/video/custom-efi-mapping-installation-001395/
http://www.fixmyhog.com/video/vance-and-hines-product-review-007293/
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Discussion
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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

    Reply
    • 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!

      Sincerely,

      Julia
      Fix My Hog Video Membership

      Reply