RB Racing LSR 2 into 1 exhaust

Discussion in 'Exhaust Sound Bites' started by bluey, Jul 28, 2009.

  1. bluey

    bluey Member

    My bike is a 2008 FXSTC, it had a slow idle when at running temperature. Someone told me that is a result of the O2 sensors forcing it to run lean.

    Today, I installed some O2 eliminators, heated it up to temp and re-tuned the SERF Fueler. The bike is stock apart from SERF, exhaust and Hypercharcge AC.

    The idle is much better now, but I don't have a Tacho and am not sure if the idle rpm is right or a bit too high now. What do you think should it be a bit slower?

    It still has a stumble when hitting the throttle too quick but I have been told they can all do that. You can hear the stumble in the video.

    Sorry about the poor quality video, it was done with a still camera.

    You can view the video on you tube youtube.com/watch?v=xcGafBNQJB4
    Last edited by a moderator: Jul 28, 2009
  2. silvrbill

    silvrbill Member

    I have the exact bike with the same pipe, Andrew 54G cams and a TMAT.
    I've lowered my idle to 944, runs good, idles good too.
    Your bike is idling faster than mine.
  3. Hoople

    Hoople Account Removed

    One thing that would give you both, an increased idle speed along with a flat spot on acceleration would be a intake vacuum leak. It might be something to check.