Not enough number to work with, it must be 17 digits. If you have the rest of it you can type it in at the address listed below:
http://www.motoverse.com/tools/vin/yamaha.asp
the last digit of your serial number is the year, this is the case for my chappy Yamaha 85 the last digit of your serial number is the year, this is the case for my chappy Yamaha 85
what year is Yamaha ATV serial number jy4am02y92c018363
Not as easy as it is to call Yamaha with your serial number and have them tell you exactly what it is.
2003
what year is yamaha serial nimber 487 000979
its an 2003
This serial relates to a IT465J from 1982
2000
1988
2006
2005
It would be a 1989