System for performing flushing through cooling water pathway in marine propulsion device

A system for flushing a cooling water pathway in a marine propulsion device with water supplied from a water source, the system comprising:

• a water control device connected to the water source and the cooling water pathway in the marine propulsion device so as to control a supply of water from the water source to the cooling water pathway;
• an electric power control device to control a supply of electric power to the marine propulsion device;
• a data communication module to perform data transmission through a mobile communication network;
• and
• a controller configured or programmed to:
• control the water control device to supply the water from the water source to the cooling water pathway to perform the flushing;
• control the electric power control device to supply the electric power to the marine propulsion device during the flushing;
• determine whether to end the flushing or not;
• and
• when it is determined to end the flushing, control the electric power control device to stop the supply of the electric power to the marine propulsion device, and control the data communication module to notify a terminal of a user of the marine propulsion device of the end of the flushing.