Very cool! Congrats on a beautiful looking as well as running engine.
Revealing my woeful ignorance about this sort of engine: what does the lever on the top of the cylinder adjust? Is it a throttle, or ... ? Also, what fuel are you using?
awake,
The lever adjusts compression as these engines are in effect variable compression ignition so no power needed. The fuels is a mix of Ether,paraffin and castor oil. You can Google for more on these engines and the fuel.
Rich