I just received a new replacement motor in the mail today from Ebay (NO WARRANTY!) After inspecting over everything I found some type of red grease? in the back of the motor right where the crankcase splits apart at the gasket.In a small area the gasket seems to be missing but its hard to tell because the motor is black as is the seal is black.Should I just run the motor and see if grease spits out or bubbles? Can I use some type of sealant if there happens to be a tiny leak? I'm not looking forward to splitting the cases open for a first time so what can I do here? Thank you