I found this mower a couple of years ago and gave it a thorough wash about a year ago and I've noticed oil has leaked on the base (arrow) from the manifold area. I tested it with aerostart not long after getting it and it fired and sounded like it ran well. They're a good looking motor but seem to be problematic.
Ahh, if only victa had kept producing the thumblatch catcher series, they would be in better shape today!