Hi, I bought this old Yamaha, I am trying to find out what exactly I have here. I no it’s a Yamaha RT 360, but what I’m not sure of is if its a RT1, RT2, or RT3 360 and I have no idea what the GT means. Anyone know if the GT was like a special edition? I want to find out as much about this bike as I can. Come spring I want to begin restoring it.