Re: Clinton Information.
I have an Intertec service manual 11th edition ,1989, volume 1 covering motors below 30hp.Covers Eska and Clinton as well as many others.After market manuals do occasionally have weak points but serve pretty well.
Especially a motor as simple as the Clinton.
You could watch ebay for manuals that where I got mine.about $15 plus shipping.You might find one at the library.Both my intertecs are retired Library books.I think most any manual for motors below 30 hp would work for you.