In dirt bike racing, two-stroke and four-stroke engines have their own unique advantages. What's the difference, and which ...

The single most expensive mistake with a petrol mower is putting the wrong kind of fuel in it, and whether a fuel is right or wrong depends entirely on one thing: does the engine run on two strokes or ...

Gearheads and faithful Jalopnik readers already know the basics of an engine's bore and stroke, but for those that might be new here, let's dip our toes in the shallow end. An engine's bore refers to ...