| Author |
Message |
    
Buell_freq
| | Posted on Wednesday, April 22, 2009 - 01:22 am: | 
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Hello fellow Buellistas!
I'm turning to you for help because (first) y'all were so helpful in helping me make my mind up to become a Buell rider in the first place (about 2 years ago) and because I'm having problems my HD dealer here in Austin is evidently unable to solve.
The link below describes the problem (click 'more' under the video description for full details) and shows what the bike is doing.
This is my bike currently at its 'best'. Tomorrow AM (mornings are the worst for my baby, much like me) I'm going to record a second video which really shows how hard she is struggling when I start her up.
Any comments would be most helpful. My local HD is kind and courteous, but far from effective diagnosing and fixing the problem. Its been about 4 months now, and I think its time to turn to someone that really knows a Buell --> you.
My next step is to head down to south Austin to another dealer known to be Buell friendly and knowledgeable, but I thought I'd be fair and give these guys one last shot... Any insights you might have could help them fix my ride.
http://www.youtube.com/watch?v=TB4gasNGCt4
Thanks folks! |
Reepicheep
| | Posted on Wednesday, April 22, 2009 - 06:51 am: |
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Sounds like a bad sensor somewhere, and the ECM is trying its best to make it OK in the face of bad data.
What is Al's mantra? When in doubt, its the last thing you worked on, a bad ground, or the head temp sensor?
Somebody will have to make a project of finding the problem... it will take a little patience.
Look at the wire bundle going to the ECM... is it routed such that it gets cut on a battery terminal? That will randomly short out one wire, and it can cause all sorts of crazy behavior. |
Kalali
| | Posted on Wednesday, April 22, 2009 - 08:59 am: |
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Depending on the age/mileage, I was going to suggest the air intake seals leaking. The dealer should be able to pick up a bad sensor when they run diagnostics. |
Buell_freq
| | Posted on Wednesday, April 22, 2009 - 10:58 am: |
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I would imagine that a bad ground is out - the problem goes away after the bike is warm. It's pretty routine... bike starts poor, warms up, runs fine. Rinse, lather, repeat. |
Buell_freq
| | Posted on Wednesday, April 22, 2009 - 11:38 am: |
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This morning: http://www.youtube.com/watch?v=50hMpBRVA3E |
Crackhead
| | Posted on Wednesday, April 22, 2009 - 12:46 pm: |
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still does not rule out a bad ground. surface rust could build up while the bike is sitting and the vibrations from running the bike sands the rust away. |
5liter
| | Posted on Wednesday, April 22, 2009 - 02:54 pm: |
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Fuel pressure? |
Akbuell
| | Posted on Wednesday, April 22, 2009 - 08:51 pm: |
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Since your bike is still under warranty, the visits to the dealer would be the way to go. FWIW, my '08 ran noticeably better after it had gathered 5k mi on the clock.
After watching the vid, your bike seems to run 'heavy' when cold, like the mixture is very rich. The idle slowly dropping down and then the engine dying is typical of this condition. Check the exhaust outlet when the engine is cold and see if you notice hints of black in the exhaust. Could be an issue w/the idle air control motor.
Hope this helps, Dave |
Blake
| | Posted on Thursday, April 23, 2009 - 09:01 am: |
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TPS rezero? |
Buell_freq
| | Posted on Thursday, April 23, 2009 - 10:04 am: |
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Thanks Akbuell! I've got just over 16K and its been largely the last 5k miles where this problem has presented.
I'm no mechanic, but it seems to me that the ECM is pouring on the gas (I can certainly smell it coming out the exhaust), realizes that it gave too much, then it leans it out, and doesn't like that much either. Sooner or later, it hits a point where the engine is just chocked up with either too much fuel and too little O2, or vice versa, and it dies.
Blake - yeah, they reset the TPS last time I was in, and changed out the fouled plugs also. No dice there. Thanks! |
Akbuell
| | Posted on Thursday, April 23, 2009 - 10:07 am: |
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You can try a TPS re-set.
Make sure the run/stop switch is on. Turn on the ignition, but do not start the motor. Turn the throttle from closed to wide open 3 times, pausing 1 full sec at open and closed limit. Cycle the ignition key off and back on. You are done. |
Buell_freq
| | Posted on Thursday, April 23, 2009 - 10:32 am: |
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Did that as well, but it also didn't help.
One of my Hellbuellie friends, Rob, documented the procedure, here it is:
* Set the Run/Stop button to Run.
* Turn the ignition key to the On position but do not crank or start the engine.
* Open the throttle fully to the stop and hold it there for one second.
* Close the throttle fully to the stop and hold it there for one second.
* Repeat the throttle open/close procedure a total of three times in succession.
* Turn the ignition key to Off/On/Off/On/ Off in succession to complete the procedure. |
Woody1
| | Posted on Thursday, April 23, 2009 - 09:47 pm: |
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Sounds like a vacuum leak check the throttle body make sure the gasket is good and the vacuum port on the right side has a plug over it mine was cracked and brittle. check the intake to see if you have a good seal there |
Buell_freq
| | Posted on Thursday, May 14, 2009 - 10:32 am: |
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Update:
Still riding the CR.
The dealer has ordered a fuel line, and I have my fingers x'd that they are right, but it just doesn't seem like it will fix the problem.
Still, I'll give it a shot. IF it doesn't work, I'm moving my biz down to the other Austin area dealer - most of the local Hellbuellies swear by this dealer. |
Buell_freq
| | Posted on Monday, June 01, 2009 - 11:19 am: |
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6th time in the shop. Friday the bike started showing all the same symptoms, then lost power and died on me as I rolled into a turn from a stop on a steep hill - you can guess what happened then... |
Bombardier
| | Posted on Wednesday, June 10, 2009 - 06:26 am: |
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Fouled O2 sensor. |
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