Question about 2006 Harley Davidson FXDBI Street Bob

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My 2006 dyna street bob efi back fires

Why does my bike back fire after i let off the throdle

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  • goodlookin77 Apr 16, 2009

    My bike is fuel enjected does it have air fuel adjustment screws?

  • goodlookin77 Apr 17, 2009

    yes it back fires after letting of the throdle ay high speed

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2 Answers

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That is usually caused by a too rich main jet
dumping too much fuel and it is igniting it in the pipe

Posted on Apr 16, 2009

  • Jeff Adkisson
    Jeff Adkisson Apr 17, 2009

    no there are no adjustments ,are you running aftermarket pipes?? if so you may have to remap the parameters at the dealer

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Or try to adjust the air of your carburator to make equal gas and air mixture. try also cleaning your spark plug.

Posted on Apr 16, 2009

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