The two-stroke gasoline engine was once a marvel of engineering, offering up huge doses of power in small and lightweight packages. Unfortunately, gas two-strokes also burn oil by design, making them ...

A quick look around is all you need to think the two-stroke engine is dead. Exhaust smokers no longer brapp their way past outdoor cafés or over twisty mountain passes. You don't even see two-strokes ...

Two-strokes are far simpler machines than four-stroke engines. They’re also lighter, easier to work on, and downright angrier, pumping out a lot more power per cubic centimeter of displacement, which ...

A traditional two-stroke engine has the piston pushing down after firing, moving past an exhaust port and allowing the exhaust gases to leave the chamber. Simultaneously, as the piston travels ...

Research into developing better yet more fuel-efficient engines is getting more an more of a rhythm these days, as the 2009 Geneva Auto Show is about to begin. What went on behind the scenes until now ...

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 ...

REMEMBER those wailing banshee motorcycles with plumes of acrid blue smoke billowing behind them? Your correspondent came of age astride one. But few two-stroke engines survived the draconian ...

This is a preview. Log in through your library . Abstract In two-stroke S. I. engines, direct fuel injection prevents fuel loss from the exhaust port, since only air is employed for the scavenging ...