Ken the Kenaroo yep that's what i found with the XR400 CDI,it's all good.
As mine is a modded bike i notice it up top the best but it's definitely stronger from idle as well.
You might know me from TT dude as weskc35k (an old password i had to remember)
The mighty XR650R.
The old trail bike that all modern trail bikes are judged by.
It's funny cause it's true!.