I have a YS 1.10 with one gallon through it now. The only problem I am having is on the idle side. When I crank the engine, I set the idle and the engine sounds great. It runs well throughout flight but it is always idling much higher a few minutes into flight then when I started. I will pull back throttle trim to get it where I can land the plane and then the engine quits.

Any ideas on what might be going on?

Thanks

Z