About the Study Guide

You are looking at a preview of what’s in the timed Idaho Boat Ed Course. Feel free to look around, but you’ll need to register to begin progress toward getting your Idaho Boater Education Certificate.

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Outboard engine
Outboards have more power per pound of weight than do inboard engines.
  • An outboard is a portable, self-contained package of an engine, gear case, and propeller that is attached to the transom of a boat.
  • A growing number of outboard engines are of four-stroke design, but many are still conventional two-stroke engines that burn oil as a lubricant along with the fuel. New-technology two-stroke outboards are direct-injection engines and burn over 75% cleaner than conventional two-stroke outboards.
  • Steering of outboard boats is controlled by a tiller or steering wheel that swivels the entire engine to direct propeller thrust.