I just had the dealer install new Cobra Lowboy Shotgun Exhaust, and a Kuryakyn Hypercharger. The bike has about 1900 miles. I am now having a problem with High Idle at stops ONLY after the engine warms after several minutes of riding. It runs fine before it fully warms-up. Also when riding, the RPM's are slow to drop when I let off the throttle. It is now back at the dealership, but after extensive trial and error with jetting, he is not much closer to finding the answer. The jetting was done originally per the Kuryakyn guidelines. He has checked for vacuum leaks, but says he can not find any. The other problem I noticed is that I get now a slight oil burning smell after the bike warms to temperature. My riding season is slipping away with the bike now stuck in the shop! Any suggestions????