I bought 2 so I could get free shipping... I am building a "white lightening" from Hip Pocket to put it on with a 1oz clunk tank, exhaust pressure uniflow.
I took one most of the way apart: very clean inside. Very simple carburetor, it is a rotating drum that is threaded onto the end of the spray pipe. The needle adjusts and seats into the end of the pipe, and as the engine throttles the needle reduces fuel flow as well the drum reducing air flow. There is no airbleed, just an eccentric head screw to stop the throttle. The rectangular hole in the crankshaft has the corners round. The piston/cylinder fit is very tight as is expected with this type of engine, lots of pinch at the top of the stroke. I can only rotate the engine though 1/2 turn without a prop. The head is a clamp-on glow plug, and a Cox style finned clamp ring.
I was disappointed as the website picture has a Cox style spinner with a hex head cap bolt, while the engines both have a stud that is part of the crankshaft. This is an obvious point of failure that will junk the engine if the shaft becomes bent or broken.
I wired the throttle open by passing a piece of soft steel wire around the carb body with the ends through the two holes in the linkage arm. I then bend the wire over and curled it, clipping it off when tight, then adjusted the eccentric screw stop. The longer hole gets the end pulling the throttle open.
Give me a few weeks and I'll have an opinion on it running, I hope.
I have an ASP .15 that runs very well, but has not been flown (and has no plans to fly anytime soon). 2 flip start out of the box, and just as clean inside.
Phil