Red circled area is the oil inlet the hose needs to be either cut and a plug of some sort needs to be inserted into it or removed from the pump and capped off. On the end of the pump where the oil inlet is, will be a 4 wire harness hanging down you can simply unplug it and let it hang. The yellow circle is the two wire harness from the oil tank for low oil and can be unplugged and both the tank and oil hose and wire harness can be removed from the boat. The blue circle is simply for your info and is the trim harness.