he did do some research and made the design in OnShape CAD before making his way over to the hardware store to make some purchases. As it turns out, you can indeed build a two-stroke engine from ...

It’s an Open Source Two-Stroke Diesel ... This is a weird engine, with two opposed pistons in one cylinder that come very close to slamming together. It’s a great design for aircraft engines ...

Two all-new engines, Honda iGX400 and the Honda iGX430 models, will be products of the design concept, offering commercial ...

as the 2-stroke design comes with clear downsides as well, including being more prone to wear and tear. Coupled with the emission guidelines, it's easy to see why these engines were phased out.