31-03-2019, 08:54 AM
With the cover removed I can see that the points are open (as you would expect). When I start the engine they stay open until I increase the revs at which point they close (also as you would expect) but when the engine speed dies down to a slow tick over the points do not open again unless the ignition is turned off...at which point they open immediately.
The CF1 cut out (for those who may be unfamiliar) is a single bobbin affair with the series winding (thick wire) superimposed over the shunt winding (thin wire). The shunt is working O.K. but for some reason the series winding is not pushing the points open as it should when the dynamo output falls. - Fortunately, the spring is sufficient to open the points when power is disconnected.
Maybe there is a problem with the feed wire? In my experience it is usually the very thin wire of the shunt winding that breaks - not the thick series wire. I do hope it is not another cut out rebuild.!
The CF1 cut out (for those who may be unfamiliar) is a single bobbin affair with the series winding (thick wire) superimposed over the shunt winding (thin wire). The shunt is working O.K. but for some reason the series winding is not pushing the points open as it should when the dynamo output falls. - Fortunately, the spring is sufficient to open the points when power is disconnected.
Maybe there is a problem with the feed wire? In my experience it is usually the very thin wire of the shunt winding that breaks - not the thick series wire. I do hope it is not another cut out rebuild.!