Apparently this place (Carburetter Exchange) in Leighton Buzzard is run by an ex-Solex employee
http://www.carbex.demon.co.uk/index.html
Solex were taken over by Zenith – and Burlen supply parts for Zeniths and Solex. http://www.zenithcarb.co.uk
Either of those could probably break the code.
Chris
Chris