It's frustrating. I got it to run for about 10 min straight. Nice and smooth with good transition from low to high throttle, but when I shut it off and tried to restart, it wouldn't pop or anything.
I wanted to use this engine on my 1/4 scale Tigermoth because of the narrow cowling, if only I could get it to start reliably. I have Homelites in other planes and they start real easy, but you have to cut a big hole in the cowling for the carb if it's a narrow nose.