I finally got the engine to run. The good news is that the engine appears to be in good shape internally. I cleaned both the raw and fresh water cooling circuits, replaced the rear seal and cleaned out the old oil and sludge. The wiring needs a bit of work since the ammeter isn't working but the rest of the system is. The bad news is that I need to rebuild the transmission. It shifts between forward and reverse but when in neutral it continues turning in a forward direction. According to the manual that means I need to replace the clutch plates. The parts aren't too expensive and the rebuild doesn't appear too difficult but it is another project to add to the list. Oh well, at least this means I can get back to the carpentry portion of the project while I wait for parts to get here. Onward and Upward!!!