The Yamaha 25DM outboard engine with the serial number 695-024907 was manufactured in 1990. Yamaha serial numbers can be decoded to determine the manufacturing year, and the prefix "695" indicates it is from that production year.
Usually the serial number is on a tag mounted on the bracket that holds the outboard engine to the boat.
On the Yamaha outboard, the model number is located on the port, (left), transom mounting bracket. The transom bracket is the part of the engine that is bolted to your boat transom.
1979/1980
2005
you can't
1991
Yamaha 8B starting in 677 is a 1979 model. That makes it 30 years old in 2009. Regards Steve
By the letter in the number
I HAVE A OUTBOARD C150ztXRU
Yamaha outboards presently uses the last letter in the model number to determine the year model of the engine. Each letter of the alphabet represents a particular model year run.
216793
235386