The PO had the charming habit of cannibalising any nearby part and adapting it with the help of a large hammer and a masonry drill.
As a result I am looking for the lever which is attached to the accelerator cross-shaft and which works off the slow running screw.
Please can you check in your spares box for one which was 'too good' to throw away and can now turn into cash. Or recommend a supplier who might help with this.
Ian, not an original, nor perfectly replicated but I reckon nicely made ... it does work excellently too as the other one of a pair I had to make is fitted to my F2 ... £7 to include postage ok?