It still wouldn't hurt if you had the bike dynoed....at least find out what is going on with the way your bike is running. I brought my bike to a HD dealership last summer and had them put it on a dyno, and found out that I was way too rich. And believe me, when the guy crank 'er up on the dyno, you would have thought my bike was a diesel with all the black smoke coming from the exhaust. So I put a smaller jet in, new plugs and my bike seemed to run pretty good. But before I layed it up for the winter, one of the nicer days we had left, I ran a shock treatment of ringfree thru a tank and about a 150 mile trip, and boy let me tell ya....my bike was running great after that trip. And yes, before somebody speaks up, I did change the oil that day. ring free is expensive, but I am a true believer in that stuff.