Key Differences Between a Two- and Four-Stroke Outboard Four-stroke outboards like this one are more fuel efficient and produce fewer emissions. Ilya / Adobe Stock. Simpler doesn’t always mean better, ...

In an early 2000s study, the National Park Service discovered that two-stroke boat engines disgorged anywhere between 25 to 30% of their fuel directly into the waters of Lake Mead, ...

The paper, Injection rate of cylinder lubrication oil in large two-stroke marine diesel engines using a common rail ...

The Cincinnati Cycle Boat takes guests along the Ohio River in a fun twist on the popular pedal wagon. The two-hour-long ride starts at Rivertowne Marina and stops halfway for bathroom breaks.