TTFullTimer
Member
I know it is a 1978 M900 90 hp inline six affectionately known as the Tower of Power series. My first ever Mercury. There is nothing on the bracket where most point to for getting the serial number. I poked around with the wonderful wrap around tin cover off but could not see anything but that timing tag which gave me the model number clue. In order to find parts etc. I will need the serial number which is unlike the Johnson Evinrude family. Truth be told, if you held a gun to my head and told be to get the serial number, I would just tell you to shoot me.