My wife's grandfather has an old (1971) Fabuglas trihull in great shape, sitting in a barn. He replaced the motor with a 6 cyl Merc 90 in the 80's - he can't remember exactly. He said I could have the boat, but I'm trying to determine the year of the motor. The serial number is A175608. I've looked at some of the web sites, but I can't find the model year that starts with a letter, they're all numeric. Any ideas?<br />Thanks,<br />Dave
