22-03-2021, 08:55 AM
If I remember correctly, the HT voltage increases when the magneto is advanced (I can't remember exactly why) and the miss-fire can be a sign that the insulation on the coil is beginning to fail.
You will remember the 1989 BA7C alpine holiday Ruairidh? I had exactly this problem on the way down to the alps, the magneto (a BTH) failed a few days later. It was replaced by my SR4 Tractor mag; these never miss a beat and I heartily recommend them.
You will remember the 1989 BA7C alpine holiday Ruairidh? I had exactly this problem on the way down to the alps, the magneto (a BTH) failed a few days later. It was replaced by my SR4 Tractor mag; these never miss a beat and I heartily recommend them.