FYI - There is a repair manual called Small Air-Cooled Engines service manual published by Intertec. It's loaded with information on small air-cooled engines, including factory specs, how to adjust Walbro carbs, parts diagrams, trouble shooting, etc. There is a 1990-2000 edition. Didn't look like Ryobi was one of the manufactures it covers, but it does cover quite a few.

Jeff

Great info, now where is the manual?

There seem to be quite a few sources for it here is one source: http://www.amazon.com/Small-Air-Cool.../dp/0872884899
I am usually pretty good at fixing things, so I normally don't need manuals much anymore, for the small engines at least. But Amazon had a used one for 0.12 cents, so I couldn't resist.

I don't want to buy another engines book, have too many of them. Will read it if it's free.