The 10th digit is the year and K is a 1989.
year and model yamaha vin 510203147
year and model yamaha vin 510203147
It' a 1977
The vin shows a 2000 model year machine
Enter the VIN into a website that offers a VIN Decoder and it will be able to decode the information on the VIN for you.
2001
Jy43hpa05sa081604
its in the vin
its in the vin
It it's year 2000
2000
Double check that vin again, it seems to be invalid.