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I’ve posted this information previously, but here goes again. The probable reason for the loss of ignition on one cylinder with your Bendix/Scintilla set up is a compound issue. Probable wear to the crank case mag mounting outside diameter, and the fact that the point opening cam on the rotor works differently than the Phelon cam. The Phelon cam opens the points for a short duration , while the Bendix/Scintilla cam closes the points for a short duration. One method to help cure the problem is to set the points opening to a mere nine thousandths. .009”. Once you have set the points to the reduced gap, confirm that the point wipers do not contact the cam while the crank is in the lowest portion of the cam’s rotation. Do this in all portions of the mag’s rotation on the crank case. The lesser point gap will retard the spark timing slightly, but it will have virtually no effect on your engine’s performance. It might be of some interest to those of you that equip your engines with kill switch wiring that Bendix/Scintilla mags do not respond well to simply attaching a wire to each point connection, and then expecting that when the wires are shorted together that ignition would be killed. Bendix/Scintilla ignitions respond well to the employment of a three wire, two kill switch set up. Have fun boating, R.T.