Originally Posted by 51ROB20
Am trying to find out the age of the Mariner 25 that was with my SR 4M when I got it. I have been told several times that the last two numbers in the serial number give the year of manufacture ? The serial number on the plate is 648 L 380525 the only other number is below the Mariner name and is :-W25ML. Can anyone give me some idea of the year this motor was made (there are some pics on my page)
Your engine is Yamaha based, on the ser plate in the bottom right corner is a single letter w,x,y etc . Each letter is a year which you can look up google or previous ribnet posts.