Turbocharger arrangement structure for personal watercraft

摘要

To augment the durability of a turbocharger. A hull and a deck of a personal watercraft are formed watertight and an opening of the deck is closed with a seat to form a body internal space. An intake duct for introducing atmospheric air from outside the body is provided in the space. An engine and a turbocharger connected to an exhaust manifold of the engine are provided in the space and the turbocharger is disposed higher than a body internal opening of the intake duct. A water jacket is formed in a casing of a turbine portion of the turbocharger and an oil jacket is formed in a bearing casing of the turbocharger, and cooling water is supplied to the water jacket and cooling oil is supplied to the oil jacket. The cooling water to the water jacket is supplied by a different turbocharger cooling water passage independent of any other cooling water passage.