My bike lags through out the gears when I'm light on the throttle, trying to maintain the same speed at about 5k rpm and lower. Then when I give it a little more throttle it jumps and runs normal. I have a bmc air intake, full arata exhaust system, the O2 sensor is just hanging out underneath the seat, and I have a pc3 installed that is mapped for a full yoshi system with intake (there was no map for the arata system I have). I just purchased this 929 and its the third one I've owned. None of the previous ones had this issue... even the first with full yoshi pc3 and no O2 sensor. Is the pc3 map causing this? The issue is still present even when I run no map. My bike is getting about 25 mpg... the other two would get at least 35 mpg with the same riding style and they were regeared -1 front +2 rear.