Started breaking in the engine last night, this is my first pumped 2stroker. Had a problem It just floods!!! Turning the low speed didn't seem to help. I replaced the diapram will try it when I get home from work. Also IT MAKES ALOT OF PRESSURE!!! should I be using some type of regulator?? Its a beautiful engine I plan on mounting it on a Laser Arrow delta I am using a MACS 1250 pipe and the final prop is goingto be a 9x9 APC