A board-based motorized watercraft may be steered by banking the board section to yaw the motor. The motorized watercraft includes a pair of pontoons connected by a beam for enhanced stability. The motor is mounted between the pontoons to the beam. The board section may rotate with respect to the pontoons and the beam. A steering mechanism couples the rotation of the board section with yawing of the motor, allowing a user to steer the watercraft by leaning to rotate the board.