Two-stroke engines have their uses, but they are seen as environmentally unfriendly today. But why do they have that ...

Two-stroke engines used to be ubiquitous in dirt bike racing, thanks to their lightweight construction and horsepower. Packed in a dirt bike frame, they make a motorcycle playful in the corners and ...

EcoMotors International, a startup based in Troy, Michigan, has a new approach to an old idea–the two-stroke engine–which it says is up to 50 percent more efficient than most vehicle engines and ...

Anyone who appreciates simplicity of design and efficiency of operation has to like small two-stroke-cycle engines that power construction tools such as cut-off saws, rammers and breakers. Producing ...

Conventional wisdom suggests that our faithful internal combustion (IC) engines are heading the way of the buggy whip. The lithium-ion battery has arrived, emissions standards are tightening, and ...