1976 4hp johnson seahorse

[highcountry]

Does anybody know the correct fuel mixture for this motor?

Motor has not been run in several years, any special precautions I should be aware of before trying to start?

[Heartman]

I have one, and run it with the 50:1 gas I use for my other OMC outboards. Runs just fine - great little motors - make sure it's pumping water - let 'er rip. Impellers on the large, popular, world-wide online auction site are relatively easy to find, and cheap as well. Impeller change on one of these is a breeze.