chainsaw won't stay running?

Question: I have an older Homelite Textron Super 2 chainsaw, UT# 104554, which will start and run for about a minute. After that, it dies and will not start. I tried cleaning the carb and replacing the fuel filter, to no avail. Wait awhile, it starts again and runs for a minute or so, then dies. Any ideas?
Also, how do I set the carb adjuster? It is about 1.5 turns out from set.