XR4 Black max 150

[Four Winns No Losses]

I have a question that is similar to the thread.. I have a mids 80s model Mercury 150 Black max. On the serial number plate it read 6551090. I cant find this anywhere. Looked at Belgium made also. No deal. Any ideas on why and or where the serial number is stamped?

 

[Dukedog]

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[dustinbarbane@yahoo.com]

Just finished the boat up a few days ago. Ran it on the ears, runs great! Good water pressure, charging now , Rpms work. Going to take it out this weekend. Thanks again for all the help!