Thanks for the replies. I have the parts catalogue and depending on the colour the part code will be different. The only thing that seems to stay the same is the code stamped on the underside of headlight bowl and as I'm doing a total restoration it doesn't matter to me what colour it is as I will respray it anyway. I have a Yamaha at2 also and that has a code YHA 11 SAE M68 so I was hoping that the missing headlight would have a code of some sort.
Thanks for any help
Julfra