| Author | Message | ||
     Gme |
I've read here many times that the cure for pinging is to retard the timing, and I agree, but have not been able to find any how to instructions, can anyone here direct me to any info on how to adjust the timing on my Uly? Thanks in advance! Gary | ||
| Teeps |
Retarding the timing will stop the pinging; but doing so has other consequences. But, if that's what you want to do, I'd be happy to show you how. | ||
| Davo |
http://www.badweatherbikers.com/buell/messages/32777/212581.html?1152743972 (July 12, 2006 archive) http://www.badweatherbikers.com/buell/messages/327 77/211240.html?1153091226 (Message edited by davo on July 26, 2007) (Message edited by davo on July 26, 2007) | ||
| 44mag2 |
If you have a pinging problem, you should contact Buell CS. Davo is correct, you can make the ping go away by retarding the timing. However, Buell rebuilt my engine for me and I broke it in with the 2007 guidelines ... and no ping so far after ~3000 miles with standard timing settings. I think that the ping was caused by 2 factors ... 1. The ULY was delivered from the factory with advanced timing 2. The 2006 break in procedure made it difficult to NOT lug the engine. I think that advanced timing in conjunction with engine lugging caused carbon to build up in the engine, which caused hot spots and thus pinging. | ||
| Horridus |
I have a June 06 Uly that was a demo (sales manager rode it for 620 miles). It pings like a sonofa..... I don't think it was broken in right. If I call Buell CS what will they really do? I find it hard to believe that they would just rebuild the engine. Please explain more 44mag2, I am very interested. Thanks, Horr | ||
| Davo |
Horridus, There are a few different thoughts on this issue and the factory is well aware of the situation. I believe the issue is compression related. There is a member of this forum that recently found some problems with significant carbon build up due to some sort of valve stem seal failure. The first thing you need to do is determine where your timing is. If it is early then retard it. If it is straight up then retard it. If it is slightly retarded then retard it some more. If your intake seals are not leaking and you are using high grade fuel then your only alternative is to retard the timing, reduce the compression or contact Buell CS. | ||
| Gme |
Thanks so much for the info, before I give it a try, I know some of you are using octane boosters (here in CA 91 is as good as it gets) have any of you guys tried "rocket fuel" http://www.gnttype.org/techarea/misc/octaneexplain ed.html might stop the pinging without the loss of HP? | ||
| Teeps |
I've used it. It works, $10 a gallon at local paint store. But, where do you carry it on the bike for the second, 3rd, etc tank fulls? Plus someone pointed out that it is highly illegal to burn toluene in an engine on the street. I have recently discovered that by adjusting the TFI unit on my bike to enrich the accelerator and main jet functions; has cured my bike from pinging. | ||
| Gme |
How is the TFI adjustment made? | ||
| Teeps |
The TFI is like a Game Genie for the engine management computer. The TFI stands between the injectors and the 02 sensor input. It allows me to apply a richer mixture to 4 areas: idle, accelerator pump, main jet and cruise(closed loop), much like jetting a carb. The TFI was installed just over a year ago. And, up until discovering it fixed the pinging. I couldn't truthfully say that it made any difference in performance, no matter what settings I chose. I'm going riding Sunday,if you want to come along. | ||
| Bertotti |
What is a tfi and did you add it as an aftermarket unit or did you have one replaced? | ||
| Teeps |
It's an aftermarket device. Understand that, I am not saying the TFI unit will fix any running problems your bike might have; only that it has (so far) cured my bike from pinging... Here's a link to their web site. http://www.dobeckperformance.com/ Here's the link to the instructions for the Buell TFI system. http://www.dobeckperformance.com/TFI%20INSTRUCTION S/TFI%201045ST/TFI%201045ST.pdf | ||
| Bertotti |
I don't really have any out of the ordinary problems I just would like to cure some of the crawling speed lurching / surging. I think first a special ops pipe and ecm flash. I never had pinging at least I haven't noticed it. GME that link by Teeps has a good instruction on how they do the tfi adjustment. I think it is clever how they relate it back to carburetors. | ||
| Gme |
Teeps, That looks like an interesting little device, was it easy to get set up and did the pinging stop without a lot of tweeking of the pots? were any other side effects noted? | ||
| Teeps |
Gme Posted on Saturday, July 28, 2007 was it easy to get set up and did the pinging stop without a lot of tweeking of the pots? were any other side effects noted? Kind of. And, if by side effects you're asking did it kill the F.E., the answer is no. I'm headed out in a few minutes for a lengthly ride which will take the bike from sea level to 5K feet above, ambient temps from 70F to 100F. I'll let you know how it goes today when I return. Again, I am not saying that the TFI will do anything for your particular bike... All I'm saying is: as of right now, the engine has not pinged in the last 3 rides. If you decide to get one, I would be happy to help you install it and make the first adjustments. Might be able to get a TPS reset done too. *** Rode 200 miles today, no pinging... :-) (Message edited by teeps on July 29, 2007) | ||
| 44mag2 |
Horridus, Sorry for the late reply to your question ... I took my Buell in 2 times for pinging ... on the third try, Buell CS told the dealer to rebuild the engine. It took time, but it was solution that worked (so far at least). | ||
| Paochow |
Teeps: You can buy little Rocket fuel octane booster tabs here. Much more expensive than $10 a gallon, but they are in tough little pouches. I carry a few in my tank bag for when the gas station only has regular. http://www.rockymountainatv.com/productDetail.do?n avType=type&webTypeId=100&navTitle=Chemicals&webCa tId=23&prodFamilyId=725 | ||
| Teeps |
4 to 7 point boost on octane? Sounds like more snake oil. Paochow, I'd be interested in seeing a M.S.D.S on that stuff. As you might have read from my 29JULY post. I rode a little over 200 miles that day without any pinging. Ambient temps for about 80 of those miles was over 90F. Elevation was, however, over 1500Ft. I'm going out today, on mostly the same terrain, I will try to include my "dyno hill" if there is time. If she don't ping today, I would say mine is cured... | ||
| Bertotti |
I guess I am the odd guy out. I haven't had any gas problems and I run whatever I can get anywhere from 87 ethanol on up to 92. No problems. | ||
| Adrian_8 |
I have never had a pinging problem on mine, last year in New Mexico we needed gas and all they had was gas with something like 79 octane and their High Octane was like 84 but they were sold of the 'good stuff".....bike ran fine on 79 octane...Titbit of Info....At the Greenville, Ohio AMA National Flat Track races two weeks ago I went thru the Pits...I saw a guy draining his gas tank on the Harley XR750 .. I asked him about the gas...he said it was "oxygenated" gas which sold for $179.00 for a 5 gallon can...Now that is the "Good Stuff". | ||
| Teeps |
Another ping free ride today. I am pleased...  | ||
| Retired_cop |
Try to find some Prop-Oxide from Klotz if you are looking for oxygenated fuel. It increases the oxygen carrying capacity of any fuel by almost 25% resulting in cleaner stronger burning hence better consumption and power. I was a distributer and racer for Klotz a long time back and used it in several different race bikes until the AMA decided to come up with a test to detect it since it was illegal in the classes I was running. A 16 OZ bottle was enough to treat 10-15 gallons of gas and it would not hurt/effect fuel injected or carbed engines. At the time I was using/selling it (90-95) it was about $7 per bottle. |
