1981.
The letter g stands for 1986 year
year and model yamaha vin 510203147
year and model yamaha vin 510203147
It should be right in front of the shift lever on the lower frame.
It' a 1977
Use the vin number it is on the lower left frame tube between the motor and the front end. Type in Yamaha vin numbers on your computer browser. When the site comes up just type the number in. It will be a 17 digit number with letters
left front side of the frame right beside the front left tire
on the frame on the left side of the ATV (as u are sitting on it) by the left foot peg. HTH
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