| Author | Message | ||
     Msparks |
I picked my bike up with 900 miles. Immediately it ran like crap at slow speed and at around 3000 rpm. So I took it in and got the TPS reset. It ran good for a while. Now 400 miles later it's stumbling at low speeds and at 3000 miles again. Is this TPS thing going to be a weekly thing? Do I need to change the plugs or something? Did the factory Buell Tech not do it right or All of the above. I don't think it would be a bid deal if I had to do it every 10,000 miles or so, but jeez 400 miles is a bit much. | ||
| Ft_bstrd |
Did Appleton HD, Clarksville do it? You need to contact ChadHargis and have him do it. | ||
| Msparks |
Ft_bstrd, Yes Appleton's did it. I was thinking it was probably them. I know you told me about it. They didn't charge me, so I was going to give them the benefit of the doubt. | ||
| Ft_bstrd |
What happens many times is that the tech doesn't do the TPS reset and idle adjustment at proper temp. I don't know if you dropped it off or rode it in and let them do it while you waited, but the TPS reset/idle set is simple to do but is easy to do wrong. Like I said, DON'T LET THEM TOUCH YOUR BIKE!!! I know thy are closer to you than Bumpus, but they are not competent at servicing Buells. Chad's in Bellevue and has become quite adept at correcting errant TPS resets. I have mine done about once a year or so. It's rarely out of kilter, I just like to have it checked. | ||
| Xbswede |
How big is the stumble? The bikes do have a hiccup at 3000 rpm. What mods do you have? It could be that the AFV was reset as well and now that it has re-learned it could be off for your setup. The stock ECM will only adjust about +/- 10%. If its off more then this it could be running like crap in Open loop and be lacking some serious power in the upper rpm range as well I doubt the TPS was done wrong. You would have noticed it the first time and not 400 miles later. Resetting the TPS has nothing to do with how warm the bike is either. Only setting the correct idle does. | ||
| Gotj |
My 06 had some bad low speed engine manners that went away with the installation of the 07 air cleaner cover. If you're handy with tools, you can drill and/or cut up the 06 box to get the same benefit. Many threads if you want to DIY. If not, the box is about $35-40. | ||
| Bmwdavid |
I now have 6500 miles on my '06 Uly. I'm running an '07 air box cover otherwise bike is stock. I've never had the TPS checked. Bike runs great! I will be taking bike into dealer for the kick stand recall (I know...dragged my feet on that as well as the BAS recall) Should I have the TPS checked? Dealer is Bloomington HD/Buell in Bloomington Indiana. Thanks, David | ||
| Baggermike |
Hey David when did they do a kickstand recall. Mike | ||
| Ft_bstrd |
David, How's your gas mileage? Many have done the '07 reflash of the ECM with the '07 airbox. I believe that the TPS is scheduled for every 5,000 miles. | ||
| Electraglider_1997 |
My 2 bits worth. If you are the type that has to be constantly blipping the throttle at stops signs you may be creating a fouling problem. Uly no likie. I only mention this because so many people just love blipping throttles but with the ULY it is a certified plug fouling strategy. | ||
| Msparks |
Thanks for the reminder on the throttle blipping. Also didn't know you had to let it warm up for a few minutes either. Most other bikes I've had I would take off as soon as the RPM's went to normal (maybe 30 sec) I'm ordering some plugs this week | ||
| Electraglider_1997 |
Msparks, I start mine and go and have no problem with doing so. Throttle blipping: I demo'd Ulys in Rapid City, SD and at the Kansas City, MO Harley Sportster-Dyna-V-Rod Factory and found it kind of funny that the demo leaders at both places were notorious and non-stop stop-sign throttle blippers. For certain the demo guy at Rapid City was a Buell employee and the Kansas City guy probably was. Drove me nuts. You'd think they'd know better. The demo ride from the Rapid City Auditorium was an awesome and spirited ride up a curvy road to Dinosaur Park and back (did it twice), whereas the Kansas City demo was lame-o except for the wheelie I pulled for the demo crowd when when we came back. | ||
| Buelldyno_guy |
Just my humble opinion based or a few hundred bikes. On all pre 08 FI Buells the only thing the ECM needs to know is where zero (0) is on the TP. Once zero TP is reset the idle screw is opend up to set a starting point for the idle speed. Then after the bike is warmed up the idle speed is adjusted. Idle speed has no effect on the zero TPS. The other miss information is that the TPS needs to rotuinely be reset. Since many Buells are not ever set up correctly, a good tech will almost always check the TPS during a service or when trouble shooting. I always take a look unless I know it's a bike that was done correctly. The other issue it to warm up at idle or while riding? This is loaded issue since the bike always needs to be warm before it is ridden hard. The ECM knows how hot the rear cyl is, normal opeating temp is in the range of 350 deg F. The problem is that as soon as the 02 sensor comes up to temp the bike goes into closed loop even at idle. Often if the bike is just setting at idle it can go into closed loop with the rear cyl temp as low as 120 deg F. This is way too soon. So my experence watching all this on the dyno is to keep the idle short and then drive off slowly for a few blocks or a half mile or so, before starting to ride harder. Again just something to think about Terry |
