Using an air compressor blow gun it took about 25-30 psi but hard to tell without good connection. I don't think there is anything wrong with the engine, I think it's just stiff and perhaps the timing could be tweaked. And it's on Ebay now of course.
Thanks Larry, yes I've noticed it on E-bay also. that is a lot of pressure....hummmm, I need another project like I need 10 more acres to mow, but I keep drawing myself back to this for some reason.