I have a leak coming from the alternator cover gasket on my 1998 M900S. My Haynes manual says to use RTV for the gasket material but I've seen a few actual gaskets online. It's got RTV on it from the last time I had to take the cover off. Can I just go with the regular gasket in lieu of the RTV? Will I need to drain my oil if I put the bike up on a center stand? I just paid ¥5,000 for oil and I don't want to waste it all if it's going to leak everywhere.