Results 1 to 4 of 4

Thread: Engine Surging/Hunting 2-3 rpm - success update

  1. #1
    I just thought I'd try and be helpful to the group and report a success update to my original post

    I got a significant improvement to the surging issue from the list of mods below:

    Standard exhaust valve zip-tied open
    Breather re-route (2:1 exiting front without catch-can/filter)
    All grounds cleaned and tightened
    Additional ground wire (coils to battery negative)
    ECM repositioned
    TPS reset
    Inlet leak checked (butane and WD40 methods) - seems ok
    Stock air filter changed to K&N
    Use of fuel system cleaner - Tunap 173 micro logic (recommended by my local bike mechanic)

    I think the final piece was finding a carb/fuel cleaner that actually works - then letting the bike learn from all the mods. And also letting the engine warm up for a few minutes before riding.

    The bike changed from being dangerous and annoying to ride - so much so that I would have got rid of it!!!
    Now the bike is a little lumpy at 1900rpm (no surprise eh?) and also at 2,900rpm as it switches between open and closed loop.

    Now I think this a fantastic bike which puts the biggest grin on my face every time I ride it :-)

    Many thanks to all the group for helping me solve it!!!

  2. #2
    Senior Member
    Join Date
    Sep 2010

  3. #3
    Senior Member s0dhi's Avatar
    Join Date
    Jul 2007
    Toronto, ON
    Good stuff!

  4. #4
    Senior Member Cooter's Avatar
    Join Date
    Dec 2012
    Crawling up your skirt

Similar Threads

  1. Warm Up Question and Surging Update
    By fastmart in forum Troubleshooting
    Replies: 0
    Last Post: 01-11-2014, 09:32 PM
  2. Engine Surging/Hunting 2-3 rpm (again)
    By fastmart in forum Troubleshooting
    Replies: 25
    Last Post: 12-10-2013, 02:47 AM
  3. Surging, chugging & flashing engine light.
    By 07Bolt_SOvitt in forum Buell Firebolt XB12, XB9
    Replies: 21
    Last Post: 07-14-2012, 08:17 PM
  4. Surging, stalling, intemermitent engine light???????
    By BuellyBagger in forum Troubleshooting
    Replies: 22
    Last Post: 10-15-2011, 06:54 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts