Patent ID: 8382537

Claim:
A marine vessel comprising: a hull; a jet propulsion device arranged to take in water through an intake port and eject the water through an ejection port rearward with respect to the hull, the ejection port being arranged posterior to the intake port; a reversing member arranged to be movable between a forward drive position and a reverse drive position, the reversing member arranged to, when placed at the reverse drive position, reverse the direction of the water ejected from the jet propulsion device forward with respect to the hull; an operation unit arranged to be operated by a marine vessel maneuvering operator to locate the reversing member at the forward drive position or the reverse drive position; an internal combustion engine arranged to drive the jet propulsion device; a control unit arranged and programmed to operate in a reverse drive mode in which, when the reversing member is located at the reverse drive position by the operation unit, the control unit controls the internal combustion engine to operate within a predetermined speed range; and an acceleration operation member arranged to be operated by the marine vessel maneuvering operator to specify a throttle opening degree of the internal combustion engine, wherein the control unit is further arranged and programmed to, when the reversing member is located at the reverse drive position, control the internal combustion engine in accordance with the throttle opening degree that corresponds to the amount of operation of the acceleration operation member if the amount of operation is smaller than a predetermined value or if a speed of the internal combustion engine is smaller than the predetermined speed range, and to start control of the internal combustion engine under the reverse drive mode if the amount of operation of the acceleration operation member is equal to or greater than the predetermined value and the speed of the internal combustion engine is equal to or greater than the predetermined speed range.