I have been working with the NGH 38cc Four stroke gasoline engine for two months now after a lot of peaking and tweaking to get rid of a lot of vibration. When I first started the engine would have flown a separate direction from the plane there was so much vibration.
I have got this engine to run as good as I can. Can you guys that have mounted and flown with this engine check out the video and tell me if the amount of vibration is not too bad to install this into a plane without a disaster.
Here's the link:

http://youtu.be/88JDgtFkuUo