Hi Troy -- greetings.

I have a YS110 with about 7-8 gallons through it or so. I have been experiencing something strange with it recently. It now idles really well and will transition very well on the ground and for the first couple of flights. Then on the third flight, the motor will not transition well at all, sometimes refusing to go above the mid-range, even with wide open throttle. This has happened about 3 times over the last gallon of fuel or so. I thought maybe it was overheating, but it does not feel scalding hot on the ground and the first couple of flights are fine. The engine has plenty of smoke on it during flight and especially when increasing the throttle. Temps over here are about 60 degrees or so when I'm flying. Any thoughts?