Hi, I have been having the same problem with my DA 150 for approx 30 flights now and have no idea as to how to solve it. I was wondering if this was something anybody can help with.
I have a DA-150 in a FC extra 330 on two KS mufflers. No matter what I do I can not get this engine to run consistent in the low to mid range. Don't get me wrong I have never owned a more reliable engine. It always starts and never ever misses a beat. Unless I am trying to prop hang and torque roll.
At about 1/3 rd to half throttle the engine will not settle down. It will either drop RPm or race away. This means the model is in a constant yo yo and I cant get it to hang where I want it.
Please can anybody be of help as it really is starting to get to me now.
Any advice will be appreciated
Regards Al