Err, yes please. That sounds like divine intervention there Lewis. My postal address is Holly Bank, Heath Lane, Boughton, Chester CH35ST.
That is much appreciated and thanks for confirming my fears Martin so I will park the bike to one side (Yam cylinder studs to sort) until I get the decompressor fettled because the starter does now seem to have much more load on it and they must have been leaking somewhat for a bit.
I will have a look at the parts catalogue in the document archive too. Not sure of the arrangement.
Progress comes in fits and starts.