Ok, I"m completely stumped here. I"ve got a Honda GX100 or 140, not really sure which that IF it will run, it only runs on full choke, for about a minute, then just dies, or it'll pop back through the carb body. So far, heres what I've done and checked. Compression: somewhere around 150 Fuel system clean as a whistle with fresh fuel, good bright blue spark which leaves me to suspect either ignition timing, or a valve is out of whack. Right now, its sitting there in the very back of my shop after me spending roughly 10 hours last night on fiddling with it. Also, what is the stock fuel air mixture screw setting?