ULEZ and how it effects the Gen1:

[mtread]

I'm guessing that the 1000 and 600 aren't fully Euro 3 compliant for all of the tests,  but the 1000 at least does meet the Euro 3 NOx test. And that's why TFL are hesitating. They've boxed themselves into a corner.
Their automated system will rely on checking reg plates against dvla records. For more recent models the NOx is recorded on the v5, but for our models it isn't. What's also relevant is that the words 'Euro3' dont actually appear on the v5, and presumably isn't known by dvla. My 'Euro3' compliant Tiger's v5 just shows the various NOx. Co etc exhaust emissions which are held on the DVLA database.
I'm also thinking that Yamaha etc tested a sample bike for CoC, and that ours are associated with it by vin numbers.
So TFL have a problem. If CoCs are showing whole ranges of bikes pass NOx tests, TFL have got to work out a way of exempting them. If we all write in and say 'my bike is the same as one you've exempted by CoC' then TFL have got lots of admin to do. If they fine people who then appeal, and it turns out they shouldn't have been charged, then that's lots of admin.
That's why I think there's a pause. Government organisations don't like lots of admin, or so I believe