Originally Posted by wake1012
Also do you how to drain the oil out, or do you suck it up throught the dip stick tube? Thanks
Not sure about the Ski Supreme (Mercruiser inboard?) but usually there's a drain hose that has a cap on the end somewhere in the bilge (Coming from the oil pan). Locate it and it should be long enough to feed out out through the drain hole. Remove the cap and put the end of the hose into an old oil bottle or something. Open the fill cap on the valve cover when draining the oil to break the vacuum but it will likely still come out very slowly.
It takes a couple of hours for all of the oil to drain from the Indmar 5.7L in my MasterCraft and my neighbor says it takes just as long to drain from the PCM engine in his Nautique. To accelerate the process you can hook a hand pump to the drain hose and suck it out. Ideally you should drain into a container that will give you some indication of how much oil has drained so you know when you're done.
To remove the oil filter get a gallon zip lock bag. Break the filter loose with a wrench then put the bag around the filter and back it off the rest of the way. Once it starts leaking into the bag pause until oil stops flowing into the bag then back it off all the way and seal up the bag. This should keep the oil that ends up in the bilge to a minimum.