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 two ...

The exhaust stroke is the fourth and last one in the cycle: the piston moves up to TDC, pushing burnt gases out of the cylinder. This is commonly how modern combustion engines work.

However, the big two-stroke's sudden rush of power made it difficult to ride outside of racing applications. From 1985 to 1991, the CR500 had around 64 horsepower and a top speed of above 90 mph.

LUBBOCK, Texas (KCBD) - “In its 96-year history, we have never had a motorcycle exhibition.” “Yamaha: The Rise of Two-Stroke Street Bikes” promises to take visitors back to the glory days of youth ...

Take, for instance, this breathtaking two-stroke from Cus’Tom Motorcycle over in France, based on a Yamaha RD350 from the model-year 1973.