i would recommend starting with lubrication before deciding to adjust the mechanicals. Most typers come adjusted correctly from the factory. But lubrication evaporates over time. Especially on the dogs that govern the star wheel. If those dogs start moving too sluggishly they let more than one tooth on the star wheel go by each time, and you get skips. So I would say get some sewing machine oil or gun oil (silicone based lubricants) and something like a toothpick to dab a drop of the oil in there where the dogs work on the star wheel and have at it. But put off making actual mechanical adjustments until you're sure it needs it. 

Hi, treefaller and Pete E.! Sorry for the delay, these days have been too busy. Thank you very much for your comments. After I posted my initial message I hadn't had the time to tinker with the machine, but I will soon dive into it and follow your advice. Will report back! Thanks again.