Mercury 90 No Serial number anywhere

Joined
Jan 17, 2010
Messages
2
I have a 74 Thunderbird with a Mercury 90. There is NO serial number Anywhere on this motor or the transom mount. It is a 6 cyl. The cover has a red stripe with silver and gray stripes on the decal.
I see a decal that says "void" where a sticker must have been removed. Im hoping I didnt buy a boat with a stolen engine. Is there ANY way to tell the year of the motor? I was told it was a 1989, but not sure.
Any help is much appreciated.

Mike
 

Barnacle_Bill

Admiral
Joined
Feb 8, 2004
Messages
6,469
Re: Mercury 90 No Serial number anywhere

Look on top of the motor for a round plug. The serial number may be stamped in it.
 
Top