Abstract: An outboard motor includes an outboard motor main body and a mount assembly to mount the outboard motor main body to a hull. The mount assembly includes a clamp bracket to be fixed to the hull, a swivel bracket to support the outboard motor main body, and a hydraulic cylinder. The swivel bracket is coupled to the clamp bracket through a tilt shaft and turnable around the tilt shaft. The hydraulic cylinder is located between the clamp bracket and the swivel bracket and is able to turn the swivel bracket around the tilt shaft with respect to the clamp bracket. The outboard motor includes a gas damper to damp an external force that acts in a telescopic direction of the hydraulic cylinder.

Abstract: An outboard motor includes an upper case located between an engine and a propulsion unit. The upper case includes case parts that are separate from each other and assembled together. The case parts include a first case part and a second case part opposing each other in a direction perpendicular or substantially perpendicular to an axis of a drive shaft.