Re: 1972 Johnson 20 hp wont stay running
Your fuel/oil mix should be 50:1, preferrably a synthetic since for some reason the conventional oil will produce more moke. Also check your plugs for corrosion and spark. I would also recommend running your adjustment screws in to a gentle seat, then back out 3/4 turn. You can fiddle with it from there. I'm hoping you don't have trash in your fuel, but that would be next. Do you have a simple in-line filter on your fuel line?
