Valve cover leaking.
I have a few Honda GCV 190 engines. I believe in maintenance. The valve cover is a pain in the butt to remove and you usually bend the old one up. 5 years ago I replaced the valve covers. I used the valve cover, gasket , and screws from a GSV190 engine. Part nos 12311-Z2A-000 and 12312-Z2A-000. I had longer screws in stock. I feel this was a great mod and as said 5 years and no issues. BTW the cast cover is cheaper!