Thanks, but I've tried that.
Tried disconnecting the cap & putting the HT lead near to the cylinder head - didn't spark.
Tried putting the LT lead near to the cylinder head - didn't spark.
I'm trying to get the flywheel off to see if the connections there are OK, but I'm not sure how the pointless system works, so I'm looking for a simple wiring diagram to explain.
As mentioned, all help is appreciated.