Just bought a boat, what year is my F60?

[Saltfisher1024]

I bought a 2008 alumacraft, and it originaly had a 20 horse. The previous owner had a F60 installed, and im not sure what year it is. Here is the info I got off the sticker on the motor...

F60TLRA
69W L 401829

Does that tell anything? If not, where else should I look?

Thanks

[ChampioNman]

Its a 2002. 20" shaft.

[Saltfisher1024]

Thanks. Should I add anything to the gas tank when I add gas other then stability? It's a carbed 4 stroke.