As it turns out, you can indeed build a two-stroke engine from scratch, using little more than some metal piping and other parts from the hardware store. You also need a welder and a lathe ...

It’s an Open Source Two-Stroke Diesel Engine that’s easy for anyone to build and has minimal moving parts. [Shane]’s engine is based on the Junkers Jumo 205 motor, a highly successful ...

In it, Bowen starts with a simple enough premise: That he's making a two-stroke engine solely out of things he found at a succession of hardware stores in his area. Well, that and the tools he ...

are not present on 2 stroke engines. Four strokes also hold an oil reservoir to continuously lubricate the crankshaft and all other internal metal parts. This all adds weight and bulk, as well as ...