HAve same engine (96' force 90) There are five bolts holding it on make sure you are in Idle position and mark the spine on lower shift linkage so it will go back together correctly. Make sure when you undo the last bolt that you have something or someone supporting the lower unit. Take impellor housing off replace impeller and reassemble make sure all seal are good and replace one that are bad. E-mail me if you have any problems. mshepherd@828rugs. I did it about 6 months ago so use this as a reference only I may have forgotten something but I don't think so.
Thanks for the info,got it dropped ok, got new pump parts on, now to put it back, the water hose conection tube seems a bit tight, I guess I'll just grease it with a little silicon paste and it should slide together.