MINIATURE, 4 - STROKE, INTERNAL COMBUSTION ENGINE WITH SPARK IGNITION 

This video shows the operation of a miniature, 4 - stroke, internal combustion engine with spark ignition. The engine has a 1/2 inch bore and 1/2 inch stroke and is built from scratch from metal bar and rod. The engine was built during the Fall and Winter of 2020/21. It is my first successful attempt at building an internal combustion engine.