I build classic Mini engines and transmissions in my little shop, and I decided it would be a good idea to be able to start them and run them before sending it off to it's owner. This way I can check for oil leaks, proper oil pressure, water leaks and temperature, set the timing and adjust the carbs a bit. I built it pretty much out of scrap, I found an old treadmill on a neighbor's curb and another had an old weight machine, I cut and welded it all up and added a "dashboard" with some cheap gauges off Amazon. Since I built it I've run about 5 engines in it - one had been sitting for about 15 years and the owner just wanted me to see if I could get it to run - which I did. I also found a pretty good oil leak from the front crank pulley.... Today I fired up an engine I had just built, I haven't done anything with the carbs yet but it sounded pretty good!