A system for maneuvering a boat including a hull and an outboard motor attached to the hull , the system comprising: a first bracket configured to be attached to the hull ; a second bracket including a left tilt shaft , a right tilt shaft , and a steering shaft support , the second bracket being configured to support the outboard motor at the steering shaft support , the second bracket being rotatably supported with respect to the first bracket at the left tilt shaft and the right tilt shaft ; a hydraulic cylinder at least a part of which is disposed between the left tilt shaft and the right tilt shaft , the hydraulic cylinder being configured to exert a steering force to the outboard motor to rotate the outboard motor about the steering shaft support and including a cylinder tube , a piston arranged in the cylinder tube , and a rod connected to the piston , wherein the piston partitions the space in the cylinder tube into a left chamber and a right chamber ; a hydraulic pump configured to supply hydraulic fluid to the hydraulic cylinder ; one of the left tilt shaft and the right tilt shaft including a first hole , characterized in that the rod is supported by the second bracket such that, when hydraulic fluid is supplied to the left chamber , and hydraulic fluid is discharged from the right chamber , the cylinder tube moves leftward to rotate the outboard motor about the steering shaft support , and when hydraulic fluid is supplied to the right chamber , and hydraulic fluid is discharged from the left chamber , the cylinder tube moves rightward to rotate the outboard motor about the steering shaft support , and when the cylinder tube moves leftward or rightward, a portion of a stroke range of the cylinder tube being located within the first hole . a first bracket configured to be attached to the hull ; a second bracket including a left tilt shaft , a right tilt shaft , and a steering shaft support , the second bracket being configured to support the outboard motor at the steering shaft support , the second bracket being rotatably supported with respect to the first bracket at the left tilt shaft and the right tilt shaft ; a hydraulic cylinder at least a part of which is disposed between the left tilt shaft and the right tilt shaft , the hydraulic cylinder being configured to exert a steering force to the outboard motor to rotate the outboard motor about the steering shaft support and including a cylinder tube , a piston arranged in the cylinder tube , and a rod connected to the piston , wherein the piston partitions the space in the cylinder tube into a left chamber and a right chamber ; a hydraulic pump configured to supply hydraulic fluid to the hydraulic cylinder ; one of the left tilt shaft and the right tilt shaft including a first hole , characterized in that the rod is supported by the second bracket such that, when hydraulic fluid is supplied to the left chamber , and hydraulic fluid is discharged from the right chamber , the cylinder tube moves leftward to rotate the outboard motor about the steering shaft support , and when hydraulic fluid is supplied to the right chamber , and hydraulic fluid is discharged from the left chamber , the cylinder tube moves rightward to rotate the outboard motor about the steering shaft support , and when the cylinder tube moves leftward or rightward, a portion of a stroke range of the cylinder tube being located within the first hole . <EOS>