Thanks for that, that's the spacing I have on the fender so at least I know what I have on the bike is correct.

Oh well my quoting of other posts didn't work! But thanks for the info everyone, good to know I have the wrong bracket rather than a combo of a wrong fender and a wrong bracket. I'll continue hunting for a replacement piece.

SHYTED, do you have a link to the eBay bracket, I can't seem to find it...

Cheers all

checking tail light assembly and license plate bracket- the same numbers come up on a ct3. I happen to have a set on ebay for cheap. If you are in the UK then perhaps we can do some trading.
1973 Yamaha Ct3 tail light bracket & license plate bracket with dampener
Item ID: 114890459317

Yes and you might find it's the same as the CT2&3 etc as well as the DT 2 & 3.
My HT 1 light assembly goes on my DT3 mudguard.
Not on some of the CT1s though as they have a different assembly.
I'd go for the one listed above so you don't get raped by the postal service and taxman.