My bike usually hot idles around 1200-1400 rpm. But recently it's been idling at 2k rpms. This is on a hot engine. Also, the engine braking "FEELS" lesser, although I'm not sure about that. Usually on cars this indicates an overtightened throttle cable or a throttle plate that can't close all the way. Or an idle air valve. I'm not really sure where to look because servicing this bike is something I'm new too. Changing the oil and coolant was a big enough pain in the ass. Its a 2007 with a slip on and 12k miles.