Got her out to the field and fired the engine up. There was initially some pooling of fuel in the carb but then after a couple rotations of the prop that stopped. I don't really know why but I think rotating the prop someout restored the pressure differential to stop the siphoning. To to be on the cautious side though, I now use a hemostat (with some bits of fuel tubing over the metal ends) on the fuel line after fueling and remove it just before rotating the prop before starting.

The Saito started almost immediately with just a couple flips of the chicken stick. It fired up and I ran it rich and slow for about 10 minutes. Then let it cool (but it wasn't getting very hot anyway) and then ran it for another 10 minutes (at under 4000 rpms). Lots of gooey fuel/oil everywhere so that's good. Then for the third run I leaned it out just slightly (about half a turn) but still ran it under 4000. After about 40 minutes of low rpm runtime, I move it up to full throttle and got that end adjusted before throttling back down.

I'm still having some problems with the idle setting. I'd like the idle to run about 2800 rpm at a high trim setting. Once the engine is running consistently with both a good top end and idle without dying, I'll take it up for a spin.