Hi.
thank to Knut, i know now that my bike is a 1964/65 G15 MK2.
I can see and know that the main diferences are the large deeply and valenced/ribbed chromed front and rear fender, dampers with internal springs, the large AMC mufflers that you said, the large four gallon thank with cast badges and large knee knockers.
About tank Knut let me know that was all in black with a coach line and pinstripe in a zigzag flash.
I must repaint the tank but i have never seen pinstripes and zig zag line.
Someone could post a picture?
Thank you.
Piero