Cylinder Head Cleaning

I Run the Smallest Rotary Wankel Engine in the World to see if it actually starts and runs then I try and hit the engine's Maximum Rpm, Engine is a Toyan RS-S100 Single Rotor Wankel Rotary Engine. This engine is so small it's almost unbelievable to me that it runs at all but it does. once things, especially engines or machines get this small it becomes very difficult to maintain the tight tolerances needed to have a well-running machine, but to my surprise, the engine ran very well.