I have a little Mercury but i dont know the year model or horse power its pretty old i think its pretty much all aluminum cast it looks like <br />the serial numbers are worn and i can only find them on the gas tank i think they are D00912R it dosent say the hp or anything else but Mercury i would guess its between 4hp and 7hp but i realy dont know i could e-mail a picture if it would help i would just like to know if i should run it on the water or if its an antiqe or worth somthing somethingany advce would realy help thank you