1. After 20+ years it's time to pass the torch. If you are interested in acquiring this forum please contact support@cv-performance.com for details. Any spam will be reported and blocked.
  2. Welcome to Bike Talk, a forum for all bikers and motorcycle enthusiasts. If you are new to Bike Talk, be sure to register for free and join the conversation.

    There's always someone around willing to help out with questions or give a friendly wave back. All Harley and metric riders are welcome.
Bike Talk Motorcycle Forum is For Sale Welcome to Bike Talk

Idle increases upon stopping

Discussion in 'Motorcycle Tech Talk' started by GJLowrider, Dec 11, 2011.

  1. GJLowrider

    GJLowrider New Member

    Joined:
    Dec 11, 2011
    Messages:
    5
    Likes Received:
    0
    Location:
    GJ, Colo
    Hello, I have a 95' Dyna Lowrider. When ever I come up to a stop light and actually stop the rpm's tend to increase. What is causing this to happen? I can't tell the exact rpm because of no gauges:banghead: Tuning is becoming a headache.
    GJLowrider, Dec 11, 2011
    #1
  3. JohnnyBiker

    JohnnyBiker Well-Known Member

    Joined:
    Mar 25, 2010
    Messages:
    9,568
    Likes Received:
    205
    Location:
    Minnesota
    Welcome to the forum. When is the last time you had the carb off of the bike and the cover off?
    JohnnyBiker, Dec 11, 2011
    #2
  4. GJLowrider

    GJLowrider New Member

    Joined:
    Dec 11, 2011
    Messages:
    5
    Likes Received:
    0
    Location:
    GJ, Colo
    I've just had the carb apart. I installed the cv performance tuners kit, new diaphram, vortex emulsion tube, new intake gaskets, and the gasket from carb to manifold. The bike does run better now. before I had a hesitation during steady cruising, it's gone now. I haven't been able to get any adjustment from the ez adjust screw, so I went down a size for the idle jet.
    Anyways, I can't remember if it had the idle increase before the carb rebuild or not.
    GJLowrider, Dec 12, 2011
    #3
  5. JohnnyBiker

    JohnnyBiker Well-Known Member

    Joined:
    Mar 25, 2010
    Messages:
    9,568
    Likes Received:
    205
    Location:
    Minnesota
    Diaphragm? Which one? The accel pump diaphragm or the black one over the slide?
    JohnnyBiker, Dec 12, 2011
    #4
  6. chucktx

    chucktx Moderator Staff Member

    Joined:
    Jul 5, 2005
    Messages:
    12,545
    Likes Received:
    10
    you have a vacuum leak....check the boot between the carb and intake....and intake gaskets....
    chucktx, Dec 12, 2011
    #5
  7. joshbob

    joshbob Well-Known Member

    Joined:
    Nov 19, 2010
    Messages:
    5,687
    Likes Received:
    167
    Location:
    Hobgood, N.C.
    Could also be a vacuum leak at the throttle shaft. (Worn bushings). That's what I ultimately found to be the case with my Keihin butterfly carb.
    joshbob, Dec 12, 2011
    #6
  8. GJLowrider

    GJLowrider New Member

    Joined:
    Dec 11, 2011
    Messages:
    5
    Likes Received:
    0
    Location:
    GJ, Colo
    It's the accel pump diaphram that I replaced. Thanks for your guy's input so far. I'll have to wait till this weekend to tear into it again. I'll check all the stuff you've mentioned.
    GJLowrider, Dec 13, 2011
    #7

Share This Page

XenPorta © Jason Axelrod from 8WAYRUN.COM