I have a 2006 Yamaha F60TLR. Did my 10hr motor oil and gear oil change yesterday. It went pretty smooth. First question is regarding the gasket for the oil drain plug. The service manual states to replace the gasket each time you change the oil. So I ordered a bunch of them @$3/ea. I was expecting them to be rubber, and hence change 'em each time. But they're metal. Just wondering why with metal gaskets you still need to change them out each time, or do you? I don't mind doing it, just wondering why. Also, I put the earmuffs on my motor and let her idle to get the oils up to temp a little. I noticed no water was coming out of the pee hole during this procedure. Is this normal, or did I have it setup wrong? I shut down the motor because I didn't want to mess anything up.