| Author | Message | ||
     Velocity |
When my 11 runs low on fuel it starts serging, I know what your thinking fill it up. This happens before the fuel light comes on. Its like clock work it stumbles I fill it and it runs awesome. I have done the "buell $6 part". I have been keeping the battery charged. Is it the fuel pump? Any ideas?? Scott | ||
| Eweaver |
My low fuel light doesn't come on until I'm out of gas. It is pretty inconvenient. The shop diagnosed it and they have ordered a new fuel pump assembly. Maybe you have something similar happening. How much gas does it take to fill the tank when it starts stumbling? | ||
| Velocity |
Hi 3.5 gals. It is almost the same every time. If I keep riding till the light comes on then it takes 4+ depending how long it takes to find a station. You fill it up and it acts like a different bike. I have only owned tubers with carbs, so I wonder if it is the fuel pump. Scott | ||
| Fresnobuell |
If I stop reasonable close to when the second fuel light comes on (it usually comes on once, disappears, then comes on for real), it is usually right about 4 gallon to fill her up... | ||
| Badlionsfan |
with the heat issues (read boiling fuel), I wonder if it's kinda vapor locking or possibly if the fuel is boiling, the fuel pump maybe trying to suck up bubbles of gas? Just thinking out loud, so someone smarter than me will chime in. | ||
| Jpfive |
This could be caused by the failure of the tank to vent, causing a partial vacuum to develop as the fuel is consumed. I think I remember it being discussed on one of the forums here, and I have seen it on other bike forums. Jack | ||
| Jdugger |
> his could be caused by the failure of the tank to vent, causing a partial vacuum to develop as the fuel is consumed. I propose a test: Next time the bike starts to perform poorly, simply open the gas cap and then replace it. If this corrects the problem until the fuel light comes on, you know if this is your problem. | ||
| Steeleagle |
+1 Jpfive AND Jdugger. Seems like if it was a fuel pump issue it would run lousy all the time, independent of fuel level. The venting possibility would affect inlet pressure to the pump, so while the pump might appear to be faulty, it's simply doing all it can with what it's given pressure-wise. | ||
| Velocity |
Thats an idea, when it does it again I will pull over and open up the tank. See if there is back pressure. Scott | ||
| Velocity |
Well its a clear venting issue, it started the crappy running, I pulled over and popped the gas cap, and there was a good amount of pressure. It ran great for a few miles and some deal. So I will check into the venting and see what the deal is. THANKS for everyones help! Scott |
