Last month's "How It Works" story gave you the basics of the four-stroke cycle, describing the motion of the intake and exhaust valves in relation to the piston moving up and down in the cylinder.

Boating is a popular recreational activity, and it could also be used as a form of transportation for moving between coastal and river areas. Since we often don't see a boat's method of propulsion and ...

An outboard engine's water pump is driven by the driveshaft. Here the author is shown sliding the water-pump housing into place. John Tiger Salt, sand, and debris take their toll on your outboard's ...

Imagine powering your boat not with gasoline but with clean hydrogen fuel. That’s exactly what Yamaha, together with Roush Industries and Regulator Marine, is working on right now. They’re developing ...