You will never see much oil pressure on a roller bearing engine and they don't need it my NC is just the
same, look at strokes and how little oil they get by on.

If by racing 2t oil you mean Castrol R then you have possibly found your problem, it's fine in a race engine that is striped regularly and run on race fuel but makes a right mess of a road engine, I have seen a few were they added a little to the fuel for the smell and it wasn't a pretty sight.

Try Esso Supreme if you can get hold of it.

Still has it's org reg number as well and I think gearbox
Thanks for that

Frame AP1144

Engine BK408

The old book says 1946 model first reg oct 1945

Thanks for the help

Will dig out the docks I have a uff book from 1952 I think and they match the new book and bike.

Not run the beast for 12 months and thinking of selling,
question is what should it be advertised as it says NG on the 1952 log book
first reg 1945 so is it a NG or W/NG?

https://www.youtube.com/watch?v=LMsE0YN2nnU

Just a little tail from many years ago.

Years ago our window cleaner had a Mk2 4 pipe square four on a tradesman's box, I looked totally original
but as though it had never been cleaned from new, it was filthy, it didn't like rain and wouldn't start
without a push, you would think with all the much ...

That looks the part and no mistake.

It will likely do the same if you press the horn as well it's due to the power for the brake light
drawing current from the battery direct not wired through the ammeter, so the regulator tries
to balance the charge and this does go through the ammeter so you see a higher reading.