I've had my new CBR250 out on two good rides now, and I've noticed a glitch in the fuel metering, but haven't noticed anyone else here having experienced it. When decelerating in any gear, as the tach drops through 3500-3400 RPM, there is a faint but noticeable hiccup in the fuel metering. It feels as if the RPM's want to pick up for a couple revolutions of the crank before continuing to slow down. Being faint and so brief, it's not going to cause control issues, and since 3500 RPM isn't a cruising range, it is only noticed upon decel. But it does it every single time, so I think it might be a EFI mapping issue. I am just curious if anybody else has noticed this nearly non-issue in their bike. How about a homework assignment, class? Everybody take a ride and see if you can recreate this upin decel at 3500 RPM! Hey, it's a good excuse to take a ride, right? In the name of science...