Here is a little tidbit that my dealer clued me in on last Friday when I had my 1000 miles check. I have been experiencing the motor running just as it is expressed early in this thread quite a lot recently. Usually can guarantee it will happen after the engine is warmed up, within 10-20 miles. Doesn't matter if you are stopping in a parking lot, in your garage, at the gas station. Within a moment or 2 after you stop, the engine starts sounding like duh-duh-duh-duh-duh and almost has a metalic sound as well as the rpm level drops just under 1000 and you think it may die any moment. Just been running great, and now this??? Well, riding up to Yakima, Washington the other day I stopped and got gas along the way and it did it. Well, it seems like when you take your vehicle to the Dr., it never does what you said it was doing when you get there. Right?? This time, within 2 minutes it started going into that same mode and I walked up to the counter while the service writer was on the phone and asked him did he want me to shut it down or leave it run. He said leave it run, and within a couple minutes one of their older, cracker-jack (this guy really did appear to be one of those "been there, done that" sort of mechanics that also recognizes whether you have been paying attention to your Harley or not as well) wrenches and after thinking a little bit and asking me, "is that what you are talking about"? and all the planets lining up as well............ finally voiced that he thought it could be something at the end of the cam shaft (?) that automatically tightens the primary chain as it goes through the primary gear box. Anyway, long story short, after they did the service to the bike, they determined that it is the auto tightener device that is "just on the verge" of getting ready to pop over to the next ratchet point to take up the slack of a "stretching" primary chain. They said it is a normal occurance (sort of like growing pains, I guess) and before very long it will stretch just enough that the adjuster clicks over to the next point on the ratchet mechanism and the chain that has been slopping just a little bit to make the noise and make it not run as well as it used to, will kick in and the problem will go away never to return again. Does that make practical sense to those of you that really understand the inner works of these engines?? Not being really that wise about these things, I sometimes think they try their best to make up a good line of bs, but it did seem to make sense to me. I am expecting the issue to cease and desist before very long and in the meantime I feel like I understand what is taking place in the meantime. Any comments???