Question about 2008 Buell Lightning XB12Scg

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Buell Backfiring My XB12SCg Lightning has on occasion begun to backfire while on the throttle

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Hesitate and then stall out completely. When I restart the engine it  immediately turns over as if nothing has happened.While in neutral I can rev it to redlineno problem. This will happen inconsistentlymaybe every few months on  average. Could it be the fuel,the line, the EFI? Any ideas?,I personally think its the pushrod valves with the EFI. I think that the EFI responds in a quick blip faster than the pushrods can open the valves, so you don't have as good atomizing of the air/gas charge. Just the nature of the beast. Course, this is assuming you have had your TPS set and shes good and broken in.,,,

Posted on Nov 10, 2008

  • Jeff Tandy
    Jeff Tandy May 04, 2012

    my XB12X is experiencing similar symptoms...what eventually fixed this problem for you Tina783?

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