Hi all! New to this site. I just bought a 1977 Slickcraft boat that has a 350 mercuiser I/O. The boat has been winterized for over a year and has not been started since.(But it ran good before it was winterized) I am new to I/O's, especially of this size. What procedure should I do to get it up and running? This motor is very old so is there anything I should look for that could be a problem?