I need help. I jump started my 09 Roadking with a car running and while it was running it did not have a good connection so we found a better one and the connection to the car sparked when it was re-grounded. After I got it running, I left work, and about 30 minutes into the ride my bike started backfirering and shutting off for about 5 seconds then turning back on. The next morning it ran fine and later that evening it did it again. I realize now that it was a very bad choice but now I have to deal with it. What did I do to it and how do I get it fixed?