TwoBuells, I had the same issue when I bought mine. Not only was it annoying, but very dangerous. Especially when taking off around a corner. I was actually so frustrated I was considering trading it in on a Japanese bike. Now that it is fixed I LOVE my Uly! What I found is that the dealer was starting it in the showroom, revving it, and shutting it off, so they thought the plugs were fouled. I went through 6 sets of plugs in a year, not to tell of the rest of the times it was in the dealership because it ran like crap. At one point it got so bad that on the way to the dealership the bike topped out at 43 MPH! When they replaced the plugs the last time they found the plug hole in the rear head was stripped/cross-threaded. They ended up replacing the rear head. I have tried to put this in terms of not pointing fingers, it could have been the plug was not installed properly or tight from the factory, or they stripped it. Also, I live in the mountains, 4500 ft, so the bike was also compensating fuel and run lean to begin with. I installed the race ecm, but the damage had already been done to the head and I was no longer getting the right compression at the rear cylinder. The dealer was absolutely useless at finding the problem. I actually called the HD factory customer service, explained my problem and that I was going to start filing formal complaints (I found a friend that worked at a HD dealership as a sales person who told me to do this). The first thing they did was assure me that they would replace the bike if they could not fix it, but they (HD) not the dealer would like to look at it to see what was wrong first. She also assured me that the specialist has not found one that he was not able to fix to the satisfaction of the customer. The process she explained to me was
1. The specialist would walk the dealer (who does not specialize in Buells) through several processes over the phone, if that did not correct the issue then
2. He would personally fly down to do the repairs himself, if that did not correct the issue then
3. They would gladly replace my bike.
Again, the dealer needs to check all of the basic stuff, timing, whatever, then make sure they check out the plugs and plug holes. There were several things that I did to 'help' it, but it didn't fix the real issue. It took a year for me to decide to call HD but once I did, wow what a difference in service. They (the dealer) no longer blamed me for the problems (your not letting the bike warm up, you arent riding it long enough when you start it, it has to be the air filter or the pipe even though it had this problem before you put them on) and actually fixed the bike. Once you are sure that the bike is mechanically sound, then there are other things you can do to help increase performance (Breather mod, ECM remap, pipe and air filter). I would shy away from these due to warranty restrictions until THEY fix your bike! The dealer where I bought mine kept blaming my K&N air filter. Really? Do I look like a moron? I am not a motorcycle mechanic, true, but I do have some mechanical aptitude; and I FREAKING RADARS FOR A LIVING!
Anyway, I hope this helps, call big Harley, they stand behind their bikes even when the dealer won't. Make the dealer provide the service you already paid for.
'06 ULY 13K MILES
K&N
AIR BOX MOD
BREATHER REROUTE
HAWK PIPE (LOVE IT LOUD,LOUD PIPES SAVE LIVES!)
ECMSPY REMAP
HEADLIGHT MOD
NEXT ON THE LIST
REAR FENDER/LICENSE PLATE HOLDER
Just my $.02(<--I stole that FYI)