We use a boroscope to quickly troubleshoot a 2 stroke engine and then we take it apart to see how it works. Considering these things are 2 for a dollar, they are testament to modern engineering and the power of "economies of scale".
Small engine mechanic; a channel worth checking out! https://www.youtube.com/user/donyboy73
Long term projects here: http://www.Patreon.com/AvE
Easter egg: http://youtu.be/b5YbxMNTqWg
