Took V11 sport out for a long drive yesterday (this bike is single owner and is used alot and runs quite well in the mountains) and the bike began to have particularly bad flat spot around 2800rpm which I attributed to the warm temps and city driving as I re-entered town.  Then it got really bad ......lots of coughing.  Fuel light flickered.  Backfire.  Time for a fill-up.  With new gas she was happy.  So let me think about this.  The tank was not empty by a long shot and now I have a new t