Two things are needed to determine the age of a Mercury outboard, the serial number, and the horsepower rating.
I contacted Mercury Marine outboard division and they answered within a week. Very good response.
It a 1976 Canadian built motor
A 9.9 hp Mercury outboard, serial number OA927309, is a 1987 year model.
A 15 hp Mercury outboard, serial number OG156835, would be a 1995 year model.
its a 1971
I have a 35 hp mercury twin sn 8382178
A 65 hp Mercury outboard, SN 6315551 would be a 1976 year model.
A 9.8 hp Mercury outboard, serial number 3270176, would be a 1972 year model.
In order to determine the year model for a Mercury ouboard, the serial number, which is listed, and the horse power rating is needed.
I'm thinking it's sometime in the late 80's
How old is my Mercury Tunerbolt 7.5 hp sn 3016729
Mercury Marine classifies year model by serial number range. For example, in 1973 Mercury produced the 50hp starting with serial number 3478003 and ending with serial number 7007358, thus 50hp serial number 3576839 would be a 1973 year model. Most any reputable dealer or repair facility should have these model year charts on hand. Also noted, when looking up Mercury year model, you will need to know both serial number and horsepower, other manufactorers, OMC for instance, only needs the complete model number I have a 50hp mercury motor sn# is 3576839. I can not find out the year,I needit to find parts.