Hello fellow Bass players

I have a Yamaha Motion B (MB 40) bass guitar, and I'd like to know how old it is and where is was manufactured...etc....
I have a feeling they were made in Japan in the 1980's but can't be sure. I have the serial number - but I don't know where to start

can anyone help me?

I've attached a couple of photos if they are of any help
Bass 2.JPG
Bass 1.JPG