I have a 12A with loss of power when accelerating. It seems to be running good when not in gear. I changed plugs and fuel filter. Plenty fuel out of pump. Dropped exhaust from manifold , no blockage in exhaust. Checked coils ohm meter, both good. Pulled coil wires off one at a time and it seems to make no differance of running of motor when 1 is pulled. I am new with Rotary motors so this is all new to me. Can anyone give me answers. If I loose this site because I am new
at this also my email is moonbopp1@aol.com.
Thanks

 

I think you answered your own question. Obviously you have a minor ignition problem. You need to confirm the coils are firing.