Had a tinker last Sunday to try and trace the fault with the ignition. With help (and I mean it) from my 11 year old son, we are sure it is the coil that is faulty. Using my screw driver test lamp with crocodile clip I checked the points and condenser which according to the instructions in the Haynes manual appeared to function fine. I later re-learned what was the Low Tension (LT) circuit and the test light glowed when on the + terminal of the coil when it should have not… or something like that.
Anyway, I’ll need about £35 for a new one, so it’ll have to wait. I didn’t test the clutch this time, forgot, but will try to next time.
If you have advice you can pass on, please comment below.