| Author | Message | ||
     Slowride |
I had started an earlier thread about my issues with my 06 Uly http://www.badweatherbikers.com/buell/messages/406 2/367299.html?1212966903 Let me explain the issue again and tell you what I have checked. Original Post: I was riding the Uly with a group here in the DFW area. Pulled over and filled up with gas, leaving the station the bike stalled like I had fouled a plug. I restarted the bike and it ran fine. So I continued on, during one of our turns I was on the throttle hard and leaned over and the bike started popping and sputtering like I had lost all power and then it was running fine again. Updated: I tore into the bike and checked all the connections under the seat, ECM, Bank Angle and the Fuel Pump. All the connections themselves look good. I noticed that there was an area on the Black Connector of the ECM that was rubbed as well as on the left bump stop. As I ride with the 06 after market low seat in the winter and the 07 low seat in the summer, I check both seat pans and both of them had rubs on the underneath of them. I am not sure if that is the source of my issue, so I pulled the ecm off the brackets and repositioned it in front of the battery behind the shock inner fender and ziptied it into place. I then checked all the connections under the air box, removed and inspected the coil , plug wires and plugs. All look good. I took the bike out for a ride last night and experienced the same issues under load. I can rev the bike on the side stand to the rev limiter if needed with no issues, but once under way or under load about 3k –4k it is a wild ride. What happens specifically is that the tach will jum from 2k –5k intermittently when the bike cuts out. All power stays on and the speedo is still working. The bike will back fire like a dagone .357 snub nosed and then regain power. I am at a loss, the only thing I haven’t done is tear into the wire loom at the front of the bike where it enters the frame per (etennuly’s) comment about a potential broken wire at a connector. Any suggestions? | ||
| Treadmarks |
Slow, FWIW, I wouldn't put the ecm too close to the heat source (rear head). Might try to swap out the ecm if possible. Check to see if your spark plug wires are loose, damaged or touching sharp ground. Spark plug status? Fuel pump pressure/flow. If it popped bad in the airbox (throttle body) may want to test your seals as well. Good luck. | ||
| Etennuly |
Is it possible you just got bad gasoline? The problem started right after a fill up. Have you drained the fuel tank and started with fresh gas? | ||
| Xbimmer |
With a CA bike if you fill past the "top" point in the frame it'll do that, first time it happened to me I damn near dropped it around a corner when it started to conk out. Ridden a couple of miles under lots of throttle drains the gas down to normal. I guess the EVAP controls on the CA bikes can't handle an overfill. I agree with Etennuly, sounds like a fuel issue since it seemed it occurred right after the fuel stop. How hot was the weather? Maybe you got a little vapor lock in the fuel ring?  OT: Shield will be on the way tomorrow Slowride, thanks!  | ||
| Duck |
I had a similar issue and it turned out to be chafed wires on the injector wires,,,,,was hell to chase down | ||
| Slowride |
Update: I drained all the gas out of the frame, what a cluster ••••• that was. I was totally unprepared for that experience. I then replaced my standard NGK Irridiums for an old set of Buell Race Plugs I had in the Uly previously. I then reassembled the bike and took it for a cruise last night. I had two brief stumbles, but nothing under load. 1st stumble was turning right from a stop sign. 2nd at a steady 34oo rpms on the highway, but neither time did the bike die. This morning I rode it in to work, about a 25 mile trip on major highways. I ran it between 85-95 mph and it never sputtered once. Close to work is a short set of s turns. So upon reaching said s turns I WOT through the chicane at a brisk 50ish mph and at hard lean to the right the bike died and lost all power. I recycled the kill switch and it fired right back up. Now this sounds like a bad BAS. Is there a way to bypass it until I get a new one? Can I just disconnect it? | ||
| Slowride |
Treadmarks - Good points, thus the switch of plugs, but the wires looked fine. Not sure about pressure on the fuel pump. It was replaced under warranty already at about 13K. Xbimmer - Never had an issue when filling to TOP. I have done that a lot, btw the bike was purchased in TX. OT: Thanks I am looking forward to trying it out. Duck - I poked around all over that throttle body last night and the night before. I didn't see anything that stood out, but its worth another look. | ||
| Treadmarks |
Slow, I had the same problem on a high speed curve with a dip in the road. Flippin the kill switch let me start it right back up. It was my BAS. I modified Odie's heat blanket, and tucked it under the bas and it has not happened again. If you have ECMspy, it will let you turn of the BAS in the ECM. | ||
| Slowride |
ok, so after a 500 mile trip up to MO, two up on the uly fighting the sporadic power loss the whole way. I run through a rain storm and what do ya know... the bike stops dead in its tracks. No fire, no pass go~ After tearing the bike down on the side of the road in a field with it raining, I unplugged all the connectors under the belt cover and reseated them. The bike fired right up and we never had another hint of trouble. ARRRRRGGGGG!~ Put her back together and the wife and I finished riding MO 125, AR 7, 16 & 23 back to Dallas, TX. Whoo hoo! We got in at 2am this morning. | ||
| Teeps |
I would revisit the connectors; disconnect and inspect for moisture, clean and dry as needed, then apply dielectric grease and reconnect. |
