Grinding sound, does it sound like the battery is drained at all?
Ok, i've got the starter working good enough for now. Might need some fine tuning later. But i want to get this thing running. So again, it seems to be the fuel not getting through. I'm going to start replacing lines. However, is there any other things i should be looking for. That solution just seems to simple for me. Is there a filter on the lines in the fuel tank i should be looking at? Can the fuel pump go bad? Is there anything that can go wrong in the crankcase that i should look for? Also, is there a way to test the main tank, reserve tank, no fuel switch? It's definantly not creating a vacuum because we tried to get it started by pouring a little fuel in the carb, and it wants to start, but its just running out of fuel.
So hopefully when someone types in "won't start" and sees this, the one piece of advice i can give is replace the plugs, even if you get spark! for a couple bucks, it's worth it even if it is not the problem.