Disclosed is a personal watercraft which is equipped with an engine
designed in such a way that, even when the engine is splashed with water,
its ignition plugs will not get wet and the heat generated from the engine
or exhaust pipe will not act on, e.g., a riding seat. The personal
watercraft includes a multi-cylinder engine having a crankshaft extending
along its longitudinal direction and a water jet pump driven by the
engine. The water jet pump pressurizes and accelerates water, and ejects
the water from an outlet port opened rearward. The watercraft is propelled
as a reaction of the ejecting water. An air filter box is so disposed as
to overlie a cylinder head of the engine, thereby covering substantially
at least the ignition plugs attached to the cylinder head.
