Two-stroke engines have their uses, but they are seen as environmentally unfriendly today. But why do they have that reputation, and is it deserved?

Automotive giant General Motors has filed patents for a two-stroke engine of the type whose excess emissions took it off the road decades ago as a technology seen as having no future. The patent is ...

What if the engine of the future wasn’t just a dream, but a reality? Imagine a power source that combines the raw, exhilarating performance of a two-stroke engine with innovative efficiency, ...

Those of us who rode and experienced two-stroke motorcycles between the '70s and early '00s hold a common memory, usually accompanied by an expletive. It is of the moment a two-stroke motorcycle hit ...