Welcome Chad!
There is not really enough information to tell which maintenance item is the major cause of your idle problems. It is possible that a combination of all the maintenance issues together is causing the problem.
I'll try my hand at guessing the magical fix:
Since the last service of the valves is less than the limit of 6000 miles, I would start by pulling off the carbs and clean them. A lot of other troubleshooting relies on the carburetor being squeaky clean. Personally, I don't believe in the church of Seafoamology.
You can PM @
Alex about the approval. Maybe you are breaking a forum rule, like posting in the marketplace without enough starting posts or something.