OK, got my new head gasket, pulled the head on my Force 120. Consulted the local machine shop guy Larry, who the boat dealers all send their work too, who suggested I NOT mill the head. <br /><br />Putting back together. Advice on whether to use gasket sealer (copper coat) or not. I have been told to use a light coating, and also been told don't use anything if it didn't come with the head gasket.<br /><br />Now I am not sure what to do. Anyone else willing to advise me on this?