| Author | Message | ||
     Bigme007 |
About a month in and 750 miles later, the Uly has developed an odd issue. When I twist the throttle (normally) she bogs down. Doesnt stall and if I let off the throttle she returns to normal and then I slooooooooooooooooowly turn the throttle and she goes. Too much (or even normal) throttle = bogs down. Go easy on the throttle = all is well. I am somewhat suspicious of bad fuel as it started about 20 miles after I just filled up at a gas station I dont frequent often. However, I would "think" that bad fuel would just mean it would run poorly across the board, not just when I turn the throttle. It happens in neutral as well as at speed in gear. Before I look into it too much or dump the fuel, I thought Id ask to see if this seems like a "typical Uly (or Buell) thing"?? Or if anyone has had the same problem ?? thanks | ||
| Natexlh1000 |
Sounds like a face full of mediocre gas to me. Can you maintain highway speed with it? That would be my choice of removing the gas. | ||
| Satori |
Sounds like a sensor problem. I had my mass air sensor on my Silverado go bad (after 13 yrs) it did exactly what you described, didn't throw a code for awhile either. It basically was creating a bad lean condition. I think the IAT sensor performs a similar job on these bikes. you might disconnect it, and if it runs better there is the problem. it will throw a code though.\ Good luck | ||
| Nillaice |
Unplugging the fuel line at the rail connection and cycling the kill switch is the easiest way I've found to get all the gas out if the frame. Keep in mind that 'Bad gas' is easy to point the finger at but it might not be the problem | ||
| Shagg1970 |
Check and see if the cap is still on the vacuum port on the side of the throttle body. If it comes off it will suck air and be lean. | ||
| Tootal |
Check and see if the cap is still on the vacuum port on the side of the throttle body. If it comes off it will suck air and be lean. That port is above the butterfly and makes no difference to your air fuel ratio. If the caps off you're just sucking unfiltered air in, until it clogs up! Since the problem is off idle it sounds like an intake leak. What year bike? | ||
| Bigme007 |
Thanks for the replies. Bike is an 06 (built Aug 05). Starts fine, idles fine, will get up to speed... just cant open the throttle.. have to "nurse" it. I do take it on LOTS of dirt/gravel... bumpy roads. Possible something got knocked loose. Going to check for loose hoses, etc.. before I dump the fuel. | ||
| Griffmeister |
I'd go along with something disconnected under the airbox. That's exactly how my bike acted the last time I rotated the engine. Thought it was all good until I went for a ride and found that I couldn't open the throttle without the engine dying. Pulled the airbox off and the rubber intake tube came with it. Snap ring wasn't on properly and probably causing trouble with some other components under there. Put it back a little more carefully and everything was fine. Hope you spot something right away. | ||
| Goodburbon |
That's not normal? | ||
| Arcticktm |
I hope your are kidding! If not, NO that is not normal. These bikes jump/wheelie like crazy when running properly. | ||
| Buewulf |
Did you disconnect the IAT yet to confirm? You can also try cleaning it with alcohol. | ||
| Griffmeister |
Can you pass the alcohol through a suitable medium first?  | ||
| Natexlh1000 |
No. do not mess with cleaning the intake air temp sensor with solvents. If it's oily, just leave it be. Oil won't damage the sensor or interfere with it. Solvents may. | ||
| Bigme007 |
Thanks for the replies. Took only 5 minutes to find the problem (once I found the time).... Throttle body intake hose was not seated. Almost certianly a result of a recent plug change. I probably loosened it when removing the air cleaner base and a few trips down some less than smooth roads, finished the job. Getting it reseated and installing the large clip, took another 20 minutes and a few well chosen words. For the record: If your bike ever exhibits symptoms like those I described, it is a good idea to check the intake hose. Chalk one problem up to - self induced. | ||
| Argentcorvid |
That spring clip was a bitch to get off when I rotated my engine. My stubby fingers didn't help either. I used some big retaining ring pliers to get it off and a big zip tie around the prongs to keep it opened up until I was ready to put it back on. | ||
| Griffmeister |
See what I mean? Doesn't take much sometimes but always good when it works out in the end. |
