Probably a simple fix

Discussion in 'Touring Models' started by Spudshucker, Oct 4, 2011.

  1. Spudshucker

    Spudshucker Member

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    I have a 2010 FLHR with new slip on 4" rineharts, stage 1 intake and the hd download. Runs well,however when I come off the throttle fast it occasionally backfires. I think it's running lean. I had a similar issue with my 06Heritage, (stage 1 intake, hd download and vance and hines longshots) that was solved with a cobra tuner. What's the best way to solve this isssue and possibly improve torque along the way ? Thanks
     
  2. speedyron

    speedyron Active Member

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    tfi dobeck
     
  3. TripleJ

    TripleJ Senior Member

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    First you will need to eliminate any exhaust leaks as this is a major cause for decel popping.

    http://www.hdtalking.com/archive/index.php/t-31122.html

    From there if popping still exists a lean condition may be the cause and most decel popping can be eliminated even more by adding a fueler, the Dobeck TFI unit being the choice of many members here for its ease of installation and adjustment capabilities and excellent support.

    Here is a link to the newest Gen 4 Unit by Dobeck

    Gen 4 Information - Harley Davidson Community

    While the HD Download helps, it is still a lean condition as compared to adding a fueler.
     
  4. dbmg

    dbmg Experienced Member

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  5. glider

    glider Veteran Member

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    I agree with the TFI tuner as being the best choice. The dealer downloads are still lean for EPA reasons.
     
  6. Spudshucker

    Spudshucker Member

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    We checked for exhaust leaks, nothing there. I'll get with the TFI today. THANKS for the quick replies. Now if I can find a ski for the front tire, I should be set for this predicted early morning snow,
    SPUD
     
  7. TripleJ

    TripleJ Senior Member

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    Uh oh, someone used the S word :newsmile055:

    Good decision to go with the TFI unit and be sure to let us know how you like it :D
     
  8. R_W_B

    R_W_B Senior Member

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    Yep I got a Doebeck TFI, set it to reccomended settings on install. Haven't had any pops on decel since. Engine runs noticeably cooler (my main reason for wanting the tuner). Engine idles much smoother and accelaration is a bit stronger, (and smoother with less of the power band effect than before) though all gears. Love it. Most economcial way to alleviate OEM mandated lean settings.
     
  9. DanDolfn

    DanDolfn Member

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    Uh oh, someone used the S word

    What could you possibly be talking about?

    It's 83 and sunny here....

    :)
     
  10. Jack Klarich

    Jack Klarich Expert Member

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    The S word should be BANNED:p