| Author | Message | ||
     Kmb |
So I will try to explain what I have going on with my Uly and hopefully you Buell experts can tell me if I am on the right track. I live in the Atlanta metro area and consequently get caught in Hotlanta traffic going home in the afternoon. It seems the average temp at 5pm is around 93* with high humidity. The Uly is pinging when I finally get a break and get to accelerate up to interstate speeds. I notice it about 3200-3800 rpm in 5th gear. I have tried gas from different stations and always run 93 octane. So here is what I have done to try to fix this: 1. Retard the timing 6* with a hot TPS reset-- oops too much, wouldn’t hardly run the next morning. It kept coughing and sputtering. 2. Split the difference in the timing and advance it 3*-- seems to run ok, but has trouble idling when cold and still coughing some after first start up and idles ~900, nothing near like it was before. I have noticed a couple other issues now, when hot its not pinging, but it idles strange. The idle surges between ~1000 to as high as ~1300, and the RPM seem to hang when pulling in the clutch to change gears or coming to a stop and the throttle feels kind strange. It almost feels as if there are notches in the cable. Solution I think: 1. New Intake seals and plug wires which I have on the way from American Sport Bike. 2. Return timing to stock and hot TPS reset. 3. Lube throttle cables again. 4. Suggestions? | ||
| Hughlysses |
Weird. Slightly retarding the timing seems like a good first step, but that shouldn't make it cough/spit/etc. If you retard it too much, it'll just be noticeably down on power (if you retard it WAY too much, it'll actually run hot due to still-burning fuel being exhausted from the cylinders). I definitely think you have some kind of secondary issue and the intake seals seem like a good place to start. BTW- high humidity, while it makes YOU hot, should actually make the bike less likely to ping at a given temperature. High humidity = more water in the air = less oxygen in a given volume of air, therefore it burns slightly cooler and is less likely to cause ping. In other words, in 93 degree F/90% RH Atlanta air your bike is less likely to ping than it would be in 93 degree F/30% RH Phonenix air. | ||
| Snowscum |
What year is the Uly? | ||
| Kmb |
Sorry, I forgot to include the year. 2006 X. Stock ECM, stock fuel map(I think, as I bought this used with 6700 miles on the clock), stock exhaust, stock airfilter. I did open the airbox by copying the slots on the left side and cutting on the left. I have not messed with the fuel map using ECMspy...I have read how to do it, but I just cant quite grasp it, so I left it alone. | ||
| Etennuly |
Is your fan operating properly? Is it on before it overheats? When on ECM spy start your bike cold, let it run until the fan comes on. Check the temperature on fan start. Trying to recall the numbers now.....crap. Sorry I don't have time to look it up now, but my fan was coming on something like 30 degrees after it was actually past the overheat threshold. Several of us took the fan into our own hands installing an overriding switch to leave it on all of the time. | ||
| Kmb |
Hmmm, I'll check, but the fan actually comes on with-in 10 miles after a cold start-up at freeway speeds and once its on it stays on, on a hot day. Mornings its a little slower. If you can get me the threshold numbers I'll check it this weekend. I will say this though, I also have the comfort kit installed and it still feels really hot on the leg, even while moving, and I don’t keep my leg up against the tank at all. Sometimes you can hear the gas bubbling when the tank is low, I assume that its boiling. I don’t know if this is related to my problem or not. |
