Yes it does. Looks to be the easiest way to just replace the inner. That way there should be only two screws/clamps to undo - one on the valve on top of the block and one on the control lever.
Cheers Foss. A mate has just come up with a choke cable from a series which he thinks may fit, its about the same diameter. We shall see in the morning
Go down to your local cycle shop. Buy a length of bicycle brake cable ( can be bought in whatever length you need ) and use it. As far as I am aware they are all the same diamiater.
Problem solved
A mate came up with a "new" (he bought it 10 years ago and never used it) Series 11A choke cable which fits beautifully even though it is about half a mil smaller.
When replacing it I noticed that the oil breather pipe was broken, wondered where all the oi was coming froml (rubbed against the air hose)these are now also obsolete but a visit to the local HGV hose distributor gat a nice RED replacement - not standard but it does look nice
Thanks for everyones help.