Induction system for personal watercraft

摘要

An induction system for an internal combustion engine of a small watercraft includes an improved construction that directs water away from the induction system. The air induction system includes an air intake box defining a plenum chamber. An upper surface of the air intake box includes at least one surface feature such as a channel, groove, depression, humps, protrusion and/or ramp. The surface features promote drainage of water disposed on top of the air box.