[Destroyer]

Originally Posted by THEFERMANATOR

Electric pumps are very doable, but why? Old school outboards were meant to be able to run without any electrical power needed short of the starter(and some have even tried to rope start the big outboards as well in an emergency). As far as running the fuel pump off the crank, that would require ALOT of added expense to build VS using a pulse type pump. Pulse pumps work fine, and are cheap and simple. Almost all lawn mowers with a pump still use a basic pulse pump, and you rarely have problems out of them. The OMC loopers though required the more complicated style pump like the VRO pumps to pump enough fuel. The OMC loopers work off of a very efficient crankcase flow pattern, and after about 3500 RPM's the crankcase stays almost pressurized constantly. this is why OMC's used teh more complicated VRO differential pump whereas other outboads stuck with a basic pulse pump. When they work they work, but unfortunately the VRO style pump does have more failures than other diaphram pulse pumps do to there design. They do though pump alot more fuel with not much crankcase differential pressure.

Well, my thinking was that if one could no longer obtain the proper part from the manufacturer, and they didn't want to junk the engine, then maybe an electric pump might just save the day.
As to the rest of the post, that's exactly the kind of info I was looking for Ferm... I may not like the answer, but at least I can understand some of the reasoning now. Many, many thanks.