Stumbling at Low-Throttle?

Discussion in 'Sportster Models' started by SilverBullet, Sep 13, 2009.

  1. SilverBullet

    SilverBullet Member

    27
    11
    0
    I have an 04 Sportster Classic 1200. I have the Screamin Eagle Stage I Air Cleaner and Screamin Eagle Slip-Ons. I re-jetted the carb myself. It ran fine last summer, but this summer it has stumbled quite a bit at low throttle situations. Like cruisin down the highway in 5th at 55-60. It doesn't run smooth. I put up with the problem all summer, because I haven't had a lot of time to ride. I honestly dont remember exactly what size jets I used, but I do remember puttin 3 washers on the needle??? Any advice guys (and gals)?
     
  2. glider

    glider Veteran Member

    25,464
    108
    44
    Low jet should be 45/46 with the washers I would use 2 of them instead of 3.
     
  3. SilverBullet

    SilverBullet Member

    27
    11
    0
    I believe I used a 45, IIRC. I will try taking a washer off and tweaking the mixture screw to see if that helps.
     
  4. hotrod351

    hotrod351 Member

    13
    1
    0
    you might have to take the carb apart and clean it out. mine started missing up real bad about a month back. i had rebuilt it a couple years ago because the accelerator pump was bad, anyway i took it apart and blew everything out and all is good.
     
  5. NEWHD74FAN

    NEWHD74FAN Experienced Member Retired Moderators

    8,176
    98
    16