Small engine surging
This is going to be kind hard to describe since I am deaf and can only go by feel and seeing the Tach. When "cold" ( if you call that in Tx) on first start up there is quite a noticeable surge while warming up, about 20-25 RPM's worth. It does smooth out when warmed up, but even at operating temp while sitting in traffic it still does it, but down to about just a small amount (maybe 10-15 rpm's). I can feel it quite a bit. I'm new to the 919 so don't know if they all do this or if I need to be checking something out.
It has after market pipes and PCIII (which I have not done anything too). I wish I could more descriptive, but I can only go on how it feels and I can definitely feel it. Any thoughts would be appreciated. Oh, just over 10k miles if that matters.