Fuel Pump

Got stranded out on the lake today. Full tank of gasoline and traveling at about 2000 rpms when the engine cut out. Was never able to get the boat restarted w/o putting fuel in the carb and then it would only run until that fuel was burned out. Checked the fuel line from the tank to the filter and then to the pump and there seems to be no clogs. A guy that gave us a tow who used to own a car dealership and purports to be a mechanic felt it was the pump b/c when we did fuel in the line to the pump it would not push it up the line to the carb when we removed that line.

So, is it as simple as ordering a new pump from SkiDim, removing the two bolts, and replacing the pump? Any advice, tips, etc. appreciated. Thanks,