Nice little engine indeed. I flooded it by pulling through three times, it has strong fuel draw. I didn't realize how wet it was at first. The prop screw/driver loosens very easily, no taper or spline. Plus I was
whacking the prop fairly hard, but still. Very easy to needle, it seems to have enough running time on it to run at a steady conservative 2-stroke setting.
That Tornado 5-3 is just the cutest 1/2A prop ever. I hope to find a box of them on an auction site someday.
Time to get that Sniffer built!