I'm now an official member of the Tarot Stirling engine club as mine arrived safe and sound in the mail yesterday!
At first I was having a bit of trouble keeping it running but determined that my old can of alcohol had taken on a bit of moisture over the years by the color of the flame and the sputtering and popping. Picked up a new can today, gave the engine a bit of lube from the pen oiler and lit her up. Much better flame this time. Got it running and after a bit of time the RPM's started to ramp up and it started to run great like the other videos I've seen.
By the way, how the devil are you guys getting the cap off the burner? Mine is so tight I usually have to pry it off with a razor blade.
Burner aside, I'm very happy with this engine! Runs great and it's a beauty. I was actually planning on building a small Stirling engine fan, but this thing already has me spoiled and I would be hard pressed to match the craftsmanship. They did a really good job.
About the only thing I'm planning on adding is a pulley so this engine can do some work.