i have a 2007 883 Sportster with EFI and i was running down the freeway passing a semi in 5th gear when i got up to about 80 and it felt like i wasnt getting any juice at all so i tried again and it sputtered a little. when i got around the truck and got back down to about 70 it stopped and i was fine. ironically i was just getting of my off ramp to get some fuel because my light had been on for about 30 miles. im wondering if it was just because i was almost sucking fumes or if anybody else has ever had this problem before as well. i have already riden it up to about 80 again to pass with a full tank of fuel and the bike ran like a top. Suggestions, do's and do not's, prior experience would be greatley appreciated

 

You have really answered your own question. If you ran about 30 miles with the low fuel light on, you must have really been near to empty and I have had that same kind if surging happen to me when I am running at high speed (80 -90 MPH) when I am really low on fuel too! It sounds to me like everything is just fine with your bike. Enjoy it and ride safe out there! Sportsters rule!

 

yeah - sounds like you were suckin fumes.

 

Its a good thing you got to the station or it would have been really sputtering and then you would have huffing and puffing from all the pushing to the station.