So I've pulled the flywheel off and lo and behold, something else non standard, a Victa magneto! The cover behind the magneto has been somewhat butchered to suit and the mountings to the crankcase assembly have been mutilated, amazingly it had been working, but still not at the moment! Due to the mutilations I'm reluctant to undo the bolts, won't gain anything by doing so anyway. If I was able to score a Wico magneto then it would be considered. Question about the spark plug lead, can it be removed from the magneto and a replacement fitted? It looks as if it may be possible with a special paste(?) insulating the connection at the magneto. The reason I ask this is because the spark plug lead where it has rested upon the cylinder block has melted through to the wire.
I've got to say I'm equal parts amazed at the use of other parts to keep the machine running and the resourcefulness of people in times past. Villiers Carby, Victa Magneto, what next... Enjoy the pics.