R,
Have you taken off the emulsion block to see if it's clear?
Dave.

Location: Sheffield

Thanks Dave - I had a good look at that and it 'appears' clear.

I appear to have resolved it by changing the float bowl using the original jets.

For information, I initially fitted a 65 compensating jet that cured the flat spot but caused a misfire up the revs (??).

Thanks for all your suggestions!

It could be the tiny little jet underneath is blocked. This jet is often forgotten.
Vince

Where is the oft forgotten tiny little jet please Vince?

Hi Ruairidh

Its on the Cornwall website http://www.austin7.org/Technical%20Articles/Carburettor%20Jet/default.html

It bleeds air for slow running but worth eliminating as a source of the problem

Happy tinkering

David

Location: The home of Hereford A7 club