Page 4 of 4 FirstFirst ... 234
Results 31 to 37 of 37

Thread: WTH did I do?

  1. #31
    Senior Member
    Join Date
    Jul 2011
    Posts
    502
    Just another idea to troubleshoot - I ride with a guy who had almost identical issues a couple years ago to what you're describing.....ran with gas only and would sputter/die without, poor fueling causing smoke from TB, bucks like crazy if ridden while keeping on the throttle.

    Spent 3 or 4 weekends trying to find the culprit. I suspected a electrical/ground issue because of the behavior and how common grounding issues are on our bikes. Finally, plopped in my extra ECM (same BIN) and she ran like a champ....which was better than finding something wrong in the harness. He had fried his ECM somehow. May not be worth buying a new one, but if you've got someone close with the same(ish) year you can confirm with TunerPro (or ECMSpy Mono if you bought that) if you have the same ECM and try it. Might solve the problem.....

  2. #32
    Anybody in the Baltimore area with a 06 Uly ECM they'd be willing to swap for a check? HA!

  3. #33
    Bike has been in the shop for a week now - they don't know what's wrong with it either.

  4. #34
    So far, everybody was right.

    Found an intake leak and replaced the gasket, a little better after that, but not perfect.

    ECM was separated internally, but no visible crack on the outside. Replaced that and it would idle fine until it got warm.

    Finally started throwing a TPS code, so they checked that and it was malfunctioning too. Replacing TPS now - we'll see if it's 100% after that. Their Buell specialist has been completely smitten with this puzzler.

  5. #35
    Senior Member
    Join Date
    May 2011
    Posts
    112
    I'll be hoping you find a relatively minor (read: "cheap") solution to your problems as they sound an awful lot like mine. Hey maybe Buell built all these bikes with a planned lifespan so they'd all go to pieces at the same time and we'd all have to buy new replacements. Reading all these posts about poor idles, backfiring, surging, etc. sure doesn't make me feel good.

    Had my bike serviced at 20k miles by the local HD dealer. Two weeks later I checked the oil level and it was below the dipstick! Filled it up and it hasn't budged since.

    Resolved not to use the HD dealer so I had the forks overhauled by a SD area independent recommended by American Sportbike. The forks are fine but now I have a ding in my brake rotor that pulses when I brake hard.

    Resolved not to use that independent. Now this!

  6. #36
    Senior Member DrogeN Omen's Avatar
    Join Date
    Dec 2009
    Location
    New Zealand
    Posts
    1,257
    i had all those symptoms on my 2007 XB12SS last year. turned out a faulty wiring harness fried all my electrics, ecm, air intake sensor, tps sensor, battery.

    I replaced them all and got an EBR ECM for $305 pre-tuned for a Drummer SS, runs like a champ now. have a flat spot at 5,500rpm in 4th & 5th gear but think its cause i have a custom built exhaust and its not fully straight through like the Drummer SS so om not getting enough flow.

    suggest checking your ECM, air intake sensor, tps sensor and looking over your entire wiring harness for any fried wires, rubbing or cracks.

  7. #37
    Got it back from the dealership yesterday after 4 weeks in the shop. They replaced the manifold gasket, TPS, ECM and one spark plug cable.

    I still don't feel like it's 100%. It lets out a kind of "PUH" noise intermittently when cruising and when it's warm the RPM's tend to fluctuate at idle, but it starts, runs and stays running so I can go back to riding and commuting.



Page 4 of 4 FirstFirst ... 234

Posting Permissions

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