On the last day of my Key West trip my 07 Ultra developed a intermittent skip. At first it would skip just one time (barely noticeable). Later in the day it got progressively worse, but never longer than six to eight seconds. Engine never completely cut off. Engine light never came on. Toward the end of the day it seemed that it happend more when I hit a rough section of pavement.
Of course when I took it to the dealer it was running perfect. Left it with them and they called me later and said that they found a partially broken wire going to the rear cylinder injector. The tech said it looked like the connector was crimped too tightly and damaged to wire. After reading some of the post here about other problems with the 110 I was relieved that it was something that simple!
Just though I would pass it along in case some one else has the same problem!