Have a 06 merc 50hp 2 stroke, that I believe the fuel pump is going out on. Boat runs fine until i get up to about 5000 rpms then will start to hear a whine that is coming from the fuel pump, almost like a loose car belt. If ran at 5000-WOT rpm boat will start to bog down like it is running out of fuel. Any suggestions on a place that I could take it into get repaired?