got 2 questions for you guys
why are you all using the moki 250 and not the 215
plus why do you need the fuel pump added
may sound stupid but i would like to know thanks
Well, I'm new to the Moki engines, but as I understand it, this plane was designed (scaled) around the moki 250. I also did some asking around of guys I know have years of experience with these engines, and they are in agreement that, for the money, it is worth going a couple hundred more for the 250, if not for now, for future projects. You can always throttle back, and it swings a more realistic size prop.
As for the pump, once again, I asked those moki experts. Answer: is it necessary - no, but, here are some benefits to using it. Easier starting, 200 or more RPM on the high end, and lower more reliable idle on the low end. This from guys who have run them both ways. I chose to install the pump for these reasons.