Hello guys,

I have a quick question. I maidened my DP clipped wing cub today and it flew flawlessly. I have the OS 1.60 twin, which is brand new (barely three tanks thru it), no onboard glow, but an unpowered remote twin glow. It was very hot up here in New England and I started it for a second flight and at half throttle it didn't seem like it was transitioning well from low power to high power. So I played with it a bit, with the cowl on in the heat, taxied out to the runway and gave it full power and apparently only one cylinder was firing. I once again played with it a bit but shut it down to further look into it and not risk a crash. This obviously is something that happens with these engines but what I would like to know is how do I make it not happen and what will make it happen? Could it be how the line from my fuel tank is arranged or could it be a low or high end needle valve issue? Like I said, the engine is brand new and it starts on one turn with my finger. I just don't want to lose my plane for something that I may have overlooked. Thank you very much for your help guys.

Mike