I'm looking at a mercury optimax 150 hp not sure if it is a 97 or 98 serial number is og667405
W wudratherbfishin Recruit Joined Jul 1, 2010 Messages 3 Jul 1, 2010 #1 I'm looking at a mercury optimax 150 hp not sure if it is a 97 or 98 serial number is og667405
