Trying to find info on this outboard?!

[Myfirstboat86]

Just bought project boat few weeks ago. Trying to find information on this 50hp Mercury outboard. Serial number on mount plate is 35777735 matching stamped number on the block. Any help would be appreciated. Thanks!

 

[racerone]

Too many numbers in your serial # ---But I say 73 model.

 

[Myfirstboat86]

It's is on a 74larson.

 

[flyingscott]

OK 73/74 model