Thanks for the additional help. Your replies got me to thinking that I would just replace the gasket first. Then I was reading Cruzer'spage on maintenance which got me to thinking maybe I had overfilled it the last time I changed the oil. I really think I did as it was just below the lip of the red center cap.
I removed some oil and will let it set for a few days and check for any leakage.
Thanks also for the tips on the RTV sealant and on checking the vent hole. Your right about super small as I couldn't see it at first. I did read the manual after this.
Thanks to both of you.