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Twins / Re: 1953 Plunger A10 starting woes
« on: 24 March, 2022, 08:41:36 »
I had a similar problem as this when I re-built my A10, a 1952 plunger. At that time I was running a magneto too. I went back through the timing process again and this seemed to sort the issue. However, I think this can also be a symptom of a failing magneto. I know you said yours was re-built, but... My magneto started to fail last year and the symptoms were rough idle, poor pick up and occasional back firing. I have since switched to electronic ignition and this has transformed the running of the bike.