Hi, my buddy has a mercury 7.5 outboard and fuel leaks out of the fuel filter like crazy. The problem i have run into is finding the model number. I cannot find the model number anywhere and the serial # that's listed doesnt even show up anywhere. The # is 5936910. The other question is do you need a new filter or is it something else wrong with it causing it to leak? Need help ASAP need to get on the water this weekend.