"If you can read the number on
"If you can read the number on the carb I can narrow it down to within a year or two - it will be a WMC-xx cast into the carb body.
But regardless of exactly what year it is, the 1986-95 models were all mechanically identical and then then the 95-2005 models were once again identical (with only a couple minor changes from the earlier ones).
In fact, a Merc serial is really just a production number with no date encoded. So if a dealer had one that was built in 1986 that sat in his shop for say 6 years and ultimately sold in 1992, it would have been sold as a "new" 92 model with full warranty."