Tim:
Have you checked for compression. If it has been sitting for a long while it may have some stuck open valves. This has happened to my neighbors WF. If you're getting compression, check to see if the plugs are getting wet with gas. If not the needle valve in the carb may be stuck shut with a little varnish from old gas. Generally a rap on the side of the carb bowl with a soft face hammer will set it free.
Good luck....
