I've just bought this non-running Atco De Luxe as a project. It's got a fair bit wrong with it, but first and most important is it won't produce a spark.
I've cleaned and gapped the points, checked all the wiring and replaced the spark plug. Still nothing. I'm getting a multimeter reading of 10k ohms from where the ht lead plugs into the coil and earth, and I've read this should be lower (3-5K?). Would this be enough to completely kill the spark?