Recently did a ring job on a GCV160. Spent more time cleaning the gasket maker off the crankcase & valve cover than the rebuild itself. I have adjusted Honda valves before so I knew the clean-up job would be tedious. Since this engine was given to me, and because I am keeping it as a back-up, I decided to cut my own gasket for the valve cover & skip the goo as a test. I used basic Fel-Pro 3157 Rubber Fiber bought off Amazon. Well, so far, so good. I put the engine on a spare lawn mower deck & ran it for about 20 minutes each day for 2 days (no grass to mow in the winter here.) No leaks. If this continues, I will be very happy with this result vs. razor-scraping Hondabond, etc. Just thought I'd pass it along. Time will tell if it continues to seal longer term. Be glad to explain how I created the template for the final gasket if anyone is interested.