| Author | Message | ||
     Buellish |
Since the only other injected Buell I've owned was a Uly that didn't have any fueling problems,I thought I'd post a question or two and see if my problems are unique or common to injected tubers. The thing that bugs me the most is that my S3 acts very cold natured.I've spent 48 years with various carbed Honda's, Kawasaki's,HD's and Buell's,so I'm used to having to warm up a bike before riding off.I was really looking forward to this S3T with fuel injection and being able to crank it up,circulate the oil and ride off fairly soon after cranking.Boy was I surprised when I cranked it for the first time and had to warm it up for five minutes or so. The Uly and my Moto Guzzi don't need a long warm up to run well so I'm wondering,is this a common problem with tube frame injected Buells or is it unique it my bike? The other problem is poor fueling at low rpm.It runs rough as hell down low and I've got a dim memory of hearing that's normal for injected tubers,is this true? A friend gave me a Power Commander earlier this year which I mounted just days before Glitch Badness.It didn't help the cold starting at all and made the bike run like crap everywhere.Having no time to dial it in I removed it and haven't reinstalled it since. Have any of you guys experienced these problems? | ||
| Akbuell |
Umm, based on my X-1 ownership, no. Power Commanders don't seem to play well with our FI systems, so making paperweights out of them seems to work best for us. Without knowing your bikes age and mileage, a kind of complete system check would seem to be in order. A simple TPS re-set would be the place to start. And knowing the AFV will be informative. The prime issues, aside from a TPS re-set, COULD be leaky intake manifold seals, leaky fuel injector O rings, and partially clogged or leaky injectors. There can be others, but these would be the most likely places I would start with. Hope this helps, Dave | ||
| Buellish |
Dave,it was acting this way when I bought it at 15.500 miles and it's an'02. | ||
| Steveford |
Here's the deal: Buells run in Open Loop (uses preprogrammed mapping) until the 02 sensor hits 400 degrees. Then the bike switches over to Closed Loop - think of it as the 02 sensor completing the circle. The bike will run weird until it hits closed loop, that's just the way it is. I just let them warm up a bit and do a lot of coasting for the first few miles. Poor running at low RPMs has not been my experience but they're not really happy below 3000 RPM, anyway. Hope this helps some. | ||
| Buellish |
All my carbureted Buells have run fine below 3000 once warmed up. (Message edited by buellish on August 17, 2015) | ||
| Alfau |
Thrown together with the cheapest bits from all over the world and never ever refined enough to do something silly like run properly. Loud noise is about as good as it gets I'm afraid,sadly most of the noise is from the poorly manufactured motor being slapped together in a hurry. There is probably 20 or thirty updates for you to spend all your money on. I could be a little disgruntled but never mind that. Enjoy fixing your clunker. Don't ride it would be a sure way to save money. | ||
| Jolly |
My two fuelie Buells (99 X1/2002 S3T) run just fine. They are a little cold blooded, and hate stop and go DC traffic on days in the 90s and speeds below 25mph... They run as well as my fuelie Guzzis do...which may or may not be saying much. both companies struggled with early adaptation of fuel injection and certain RPM ranges... but...they run fine for me, and I have no issues with the S3T or the X1 as long as I let them warm up. I think I may be lucky in that endeavor as I know some guys out there do have issues. seems like the TPS reset is a common cure, as are intake seals. I have not yet had to learn how to use the ECM spy cause mine really don't seem to have an issue. I also don't push my bikes hard, I don't expect them to turn high performance numbers like a Duc or MV Agusta or something equivalent. I always wonder why some people that seem to hate these bikes still hang out here..... Don't worry about him, yeah these bikes take a little tweaking to get right, or better, than they left the factory, but every one of my Buells (all tubers) run just fine for me! | ||
| Steveford |
They have their share of problems but it's nothing that can't be fixed. Harley certainly didn't do them any favors with the supplied motors, that's for sure. I had to pull my first X1 into a pile of pieces before I found all of the chips and swarf they left in there and then there was a shifter drum pin that kept walking out and popping off the clip. That never happens on a Sportster is what I was told at the time. If I remember correctly, you're supposed to do a TPS reset every 10,000 miles on these. I don't have a shop manual in front of me at the moment. It only takes a few minutes with a laptop. (Message edited by SteveFord on August 17, 2015) | ||
| Firemanjim |
Power Commander on Buells never worked because people did not understand the learned fuel area and tried to tune there to 13ish A/F ratio. ECM did not agree and leaned everything out. First make sure your bike does not have intake seals leaking and the vacuum port uncapped on throttle body.Do a good TP reset as well, and see what your AFV is before you start--- that will give you clues to how bike is running. Then a decent tune with ECM_Spy will get it running great. | ||
| Scott_in_nh |
my 99 S3 is a little cold blooded, but nothing like you describe. That said, I put in the race ecm within days of buying the bike, Warm up for me is about 30 seconds and I'm ready to go, even after a 1250 kit and N6 cams. ECMSpy and some troubleshooting should get you to heart of the matter. I've had all but a few of the known problems with my bike and it has gotten old at times, but the fuel injection has performed as advertised. | ||
| Jolly |
Does anyone have a "How to" job guide step by step "manual for the ECM spy program??? Eventually I will have a need and would like to take advantage of the available wisdom from the pros!  | ||
| Steveford |
Send me a PM with your email. | ||
| Buellish |
"Does anyone have a "How to" job guide step by step "manual for the ECM spy program??? Eventually I will have a need and would like to take advantage of the available wisdom from the pros!" Me too,me too! | ||
| Akbuell |
Buellish: PM sent. | ||
| Natexlh1000 |
It's extreeeemly important to get the TPS reset done right on these bikes. The computer uses it to extrapolate how much air is getting into the engine and therefore how much gas to squirt. Typically, you have to do a TPS reset to get the bike running pretty much OK. Then warm the bike up and do it again at running temp. That having been said, bear in mind that these bikes are getting on in years and rubber seals and O-rings will be getting pretty crispy with exposure to heat and alcohol. It doesn't take much of an intake leak to ruin your day. | ||
| Harleyelf |
The cam position sensors fail and do not throw any trouble codes. Take the timing plate off and smell for any burnt electronics. | ||
| Buellish |
Thanks for all the comments guys.I'm getting my Guzzi ready for the road now and when I don't have to rely on the S3T I'll dig into it and see what I can see now that I have some direction. Steveford and Akbuell,pm and email sent. | ||
| Buelldualsport |
Buellish Could we get on that list, too Buelldualsport@yahoo.com Thanks tom |
