Every new internal combustion car and truck sold in America today is equipped with a four-stroke engine, as are the vast majority of motorcycles. Today, if you hear the loud, ringing song of a ...

We've seen many engine configurations come and go, with some being more noteworthy than others and some being just outrageous. Honda attempted to modify the shapes of the pistons used in its engine, ...

As PopMech’s autos editor, I obviously consider myself a car guy. But when it comes to two wheels, the capabilities of modern motorcycles astonish me. We now have road-legal bikes that produce over ...

Have you ever woken up in the middle of the night worried that you have never, ever changed the oil on your two-stroke lawnmower? Well, you can relax. A two-stroke oil change is like a left-handed ...

We may earn a commission from links on this page. Motorheads have been dreaming about an electromagnetic valve train for years now. A virtual cam profile, in concert with the elimination of floating ...