| Author |
Message |
    
Loucksgl
| | Posted on Saturday, April 05, 2008 - 09:37 pm: | 
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Just an update on my ongoing rough run problem with my 08 Uly since I got it. Problem was roughness very noticeable 3K rpm and neutral throttle level or down hill noticeable 3K through 4500 rpm. Town and slow running "really rough". Tech tried to download an update today into ECM. ECM wouldn't take it. Installed new ECM and completed the download. Compared my bike with another new 08 Uly. Mine still noticeably rough. Put my bike on a dyno with me on it. I ran the rpms where I notice the roughness. Tech watched on his computer and recorded data. I think they are sending the run to Buell. Incidently, the bike run's somewhat rougher now. I don't mind as much now since a serious technical effort is being attempted. And my hat's off to a great service experience today. Maximum effort has been directed to curing my problem. Don't want to sound like an advertisement, but I witnessed a great service department effort for me. Great job Carl!!!!!!!!!!!!!!!!!1
(Message edited by loucksgl on April 05, 2008)
(Message edited by loucksgl on April 05, 2008) |
Loucksgl
| | Posted on Sunday, April 06, 2008 - 11:26 pm: |
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2nd interesting update. Since I had the ECM replaced I have had two gas tank fill ups. The bike was in town/country road, 3-4K rpm driving. Nothing crazy. Previous to the ECM change I would get 42 to 44 mpg max under these conditions. "forever!". The two tanks full today delivered 49 and 50 mpg. Same stock program in ECM. I don't get it; but I'll take it. Interstate and high speed driving should really give good results. Previous ECM gave me 47 to 48 mpg. Can't wait to check this new download on the hi way at speed. |
Az_m2
| | Posted on Monday, April 07, 2008 - 09:00 am: |
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I had an interesting experience with gas mileage on my Uly. After break-in, I averaged in the low 40's (right around 42) for the first couple of years. Immediately following my 30k service, my mileage jumped into the high 40's and I actually hit mid 50s on a couple tankfulls. That lasted for a couple months, then back to low 40s.
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Jlnance
| | Posted on Monday, April 07, 2008 - 01:50 pm: |
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TPS? |
Loucksgl
| | Posted on Thursday, April 10, 2008 - 07:00 am: |
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Had to take a trip to Central Tennessee and dropped off the Uly at a Buell friendly dealer for them to give the rough low speed thing a look see. No fix or change. The problem has received quality attention from two great dealers and a discussion with Buell Cust Service. I am of the opinion that it is what it is and can not change. It's an engineering thing and A shame. Great bike but very bad low and mid speed manors; in my estimation. |
Blake
| | Posted on Thursday, April 10, 2008 - 02:41 pm: |
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What did the Central Tennessee dealership do and what did they tell you?
I cannot disagree more strongly. Something is amis with your Uly.
Have they scrutinized the fuel injectors?
Have they tried replacing spark plugs and wires?
Have they tried replacing the various sensors, cylinder head temperature, intake air temperature, throttle position, O2, etc?
Have they scrutinized and tightened all electrical connections and grounding points?
Have they scrutinized, inspected, tested or replaced the fuel pump? |
Loucksgl
| | Posted on Friday, April 11, 2008 - 09:05 am: |
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Blake
Thank you so much for all the suggestions. These are things I would do if I were a tech. But I don't have my finger on the trigger. All other service people do. The one key thing here that everyone seems "not to be taking advantage of" are these two facts. At Mt Mitchel altitudes (over 6500 feet) the bike is flawless. Total creamy smooth perfection. In really cold weather, it smooths out. Not as perfect as with high altitude. Whatever governs those two parameters is the link to solving the issue. But I can't arrange a tech to ride my bike on Mt Mitchel and I can't make it winter. And I'm frustrated to the point of "just try to ride around it." |
Blake
| | Posted on Friday, April 11, 2008 - 11:03 am: |
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Was that before or after the new ECM.
What did the Central Tennessee dealership do and what did they tell you? |
Loucksgl
| | Posted on Friday, April 11, 2008 - 12:24 pm: |
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I have not operated the machine at 6000 ft since the time I mentioned in previous posts. So I have not tried the new ECM at altitude. But the jerkiness is still there at in town speeds. That is 3000 rpm and above. Put in any gear 1st, 2nd, 3rd and run 3000 to 4500 rpm and feels like a loose primary chain; but it isn't. Roll off throttle and it will give sporadic jerks after down shifting all the way to stop or till clutch is pulled in. The Central TN dealer ran the bike and could not determine a problem to work on. However; the other 08 ULY I rode, brand new, warmed up quicker and never gave one jerk as I rode it in the same fashion as mine. Techs usually say that "that's how they are, you know; they jerk going slow." That's the answer I get anyway. And I think that's a sincere answer from them. I also think it is incorrect. |
Blake
| | Posted on Friday, April 11, 2008 - 04:49 pm: |
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I agree and I think you should find yourself a competent shop to diagnose and resolve the problem. Get it fixed or have it replaced. Call BCS. |
Loucksgl
| | Posted on Friday, April 11, 2008 - 10:56 pm: |
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I'll see who I can find. I've noticed something in general with Harley dealers thats kind of strange. It seems that with a diagnostic problem; they seem to take a course of action and say go try it. This is repeated time and time again. But it would seem rational that "they" could try it (test their own repair) and make the determination of fixed or not. Then it's take it and return with it. And on and on. In my hey day they (we) stayed with it first time till it was diagnosed and fixed. Strange. Been 13,500 miles now and no one can fault me for impatience. I'd have been swapping parts long ago in the old days. But thanks for the interest. I'll attempt one more try with BCS. As an added note: (Harley techs, it appears, don't seem to understand how a performance bike should run or feel. Not sure many have actually been on anything but Harley. Get the impression anyway. Not their fault. But they can't make something function if they don't know how it's supposed to feel. Most can't even feel the problem. "Buell's are like that" is the slogan. |
Blake
| | Posted on Saturday, April 12, 2008 - 01:16 am: |
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Niether of the dealershios I've used, three in totoal, are like that. Find a good one and stick with them. |
Loucksgl
| | Posted on Thursday, April 17, 2008 - 04:21 am: |
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In reference to the roughness of the 08 Uly. Dealer recently installed a new ECM. Finally got to put some miles on. Yesterday ran down to TWO camp ground and over to 129N to Robinsville and onto the Cherohala Pkwy and on to Tellico Planes no stop. Uly got 53 and 55 mpg on tank fills. Amazing!! Previous best 47 & 49. I can live with the rough run. Liking it! |
Etennuly
| | Posted on Thursday, April 17, 2008 - 11:10 pm: |
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Gary, could you be up for a ride Sunday? I still want to show you what a truly good Uly runs like! |
Bad_karma
| | Posted on Friday, April 18, 2008 - 12:44 am: |
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Gary
Not sure of the 08 changes but your problem appears to be in the closed loop operating rpms of the previous ECMs. When your are done with Buell take a look at ECMSPY2. As you mentioned that at higher altitudes the bike runs great. This is a fueling problem.Good luck, you will be surprised how much happier you will be when you get this fixed.
Joe |
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08 Uly Rough Run