I started with a clearer head this morning.
It could be that the switch could be in any orientation because it rotates in the headlamp shell.
But a logical orientation could be :-
The moulded OFF position towards the LEFT of the bike looking forwards.
The moulded terminal number 8 corresponding to the moulded off position.
Does this sound correct?
Many thanks.
ps the switch and the bike needs to be completely re-wired, which is why I want to cross check the wiring at every stage.
Dave

From the video of the 1923 TT win, there appears to be some poignancy in Les putting his hat across his chest rather that waving it in the air triumphantly for Tom Sheard, possibly because the day before (Thursday 14th June 1923) was the funeral of William Wilson Douglas? (reported in the Western Daily Press, Bristol 11 June 1923). He had passed away on Sunday 10th June 1923.

This, along with the death of Veasey on a Douglas during the senior TT, would definitely have put a damper on what otherwise would have been a huge celebration after all the efforts in getting the Douglas Factory Team ready for the TT (this information being presented by Clew in The Best Twin).

Unfortunately more bad news was to come. The following day, Saturday 17th June 1923, Miss Helen Douglas, daughter of John Douglas was tragically run over  by a taxi cab while crossing a road at Weston Super Mare on the first day of a holiday and died later in hospital – this was reported in the Western Daily Press on Sunday 17th June 1923.

This must have been an incredibly upsetting time for the Douglas family having a double bereavement in such a short space of time. Helen’s funeral was on Friday 22nd June 1923 with many shocked mourners in attendance including S.L. Bailey. Maybe no wonder we don’t see much of what Les was doing after this time - until he leaves for Australia - given the extremely sad occasion(s) and given he would have been busy with new models, Olympia Show (in October) and maybe also managing the  transition for Pullin to take over his role at Douglas?

-Ian

By mid 1948 the Warburton car (is this the same car as the Douglas powered Chatterton - Warburton Special?) appears to be Matchless powered. looks like a bit of foxing was going on in the handicap races of the times - nothing changes!

Here's another Douglas-engined Australian 500, this time with the motor (said to be "I.O.M." rather than DT) in the rear.

Leon

could be that the float is leaking, and no longer floating at the height required to stop flow before the carb leaks, to check strip carb  and shake float, you may hear the fuel sloshing about orimmerse float in hot water, if it bubbles then the float has a pin hole
If the float has a pin hole you may be able to seal it with solder (after you dry it out )
Paul