While were on the subject of pc3 usb, which was already installed on the bike when I bought it a year ago with 2400 miles on it. Now I have 12000+ miles on it, adjusted valves, new stock air filter, spark plug, and all service basically done to "KTM's" Militant requirements, Im hearing a bit more backfiring, or studdering(don't really know what to call it) at idle, and a bit of power loss after.......5-6rpm throttle pull. I'm cursed with a good ear, and know every new pop, rattle, and change to my bike's sound, but don't know much about fixing those issues. Oh yeah, the exhaust is putting out more of a gas stank(lean or rich?) than I remember. I just bought the 9 volt battery adapter hoping the pc3 usb can ease some of these issues with those low,mid,high buttons on faceplate. But I have no idea which ones to start with. If I smell more gas than usuall, can i lean, or richen from those buttons? And the exra backfireing? Please any pointers would be awesome. Aloha.....