First time boat owner here. I just picked up a 2004 Cyclone with a Mercruiser 350 MAG MPI. I'm wanting to change the raw water impeller and the fuel filter as preventative maintenance as Im not sure of the maintenance history on this boat. If anyone can tell me the location of the impeller housing and what filters I should change and their location that would be appreciated. There seems to be many different variations depending on the year and model of each boat and engine. I've already done an engine oil change but that's it