Help! Trying to identify my Mariner motor year!

[BoatsRLife_chic]

I'm trying to figure out the year of my Mariner boat motor. It came off of a 85 Thundercraft, but I'm unsure of the motor year. It's a 75 HP, not oil injected, 4 Cylinder? 4 stroke, I believe. Could be wrong? Serial number is 6616433. Any help would be certainly appreciated!!!!

 

[roscoe]

Its a 2 stroke, needs oil mixed in the gas.

1984 model year.

 

[QBhoy]

Mid 80’s at her youngest. Early at her oldest. One of the few that age that weren’t Yamaha

 

[BoatsRLife_chic]

Mid 80’s at her youngest. Early at her oldest. One of the few that age that weren’t Yamaha

Thanks guys! Didn't expect any responses at all let alone that quick! I really appreciate it!

 

[Faztbullet]

Tis a 1985 model...good lil motor if it has good compression. Need to find you a 3 ram trim unit ad pop it in . No more raising manually in shallow water or ramps.