Since we have 2 exact same bikes, KLR 06 with close mileage, we can compare. One of the things we noticed is that on any given day, one bike will feel more "revy" than the other one...and then on another day visa versa. Everything is stock in the engine except both had the doohickey done. Anybody have any thoughts? We even thought it may the airfilters so we changed both at the same time but both bikes still responded opposite. Sure is nice the days the motor revs quickly and loosely. Feels like it should and then some days like today, my bike feels like it is not getting enough air and feels kind of spungy.