Patent ID: 6701859
Filing Date: 2004-03-09
Classification: F02B

Abstract:
A personal watercraft comprising:a water jet pump that ejects water rearward to propel the watercraft as a reaction of the ejecting water; an engine for driving the water jet pump, the engine having a crankcase and a crankshaft rotatably mounted therein; and an extended shaft placed coaxially with the crankshaft of the engine and having a first end portion connected to one end portion of the crankshaft, the extended shaft further having a second end portion supported by the crankcase and being rotatable; wherein a mounting hole is formed at the one end portion of the crankshaft so as to be coaxial with the crankshaft, and the first end portion of the extended shaft constitutes an insertion portion inserted into the mounting hole; and wherein the extended shaft is connected to the crankshaft so as to be integrally rotatable.