You mention 4 volts at the coil, but don"t say whether this is constant or varies when you crank.If you CONSTANTLY have a steady four volts at the coil when cranking, your points are shorted or not opening properly or there is a short elsewhere in the system. If the voltmeter shows the full twelve volts with the points open, and four volts when the points are closed, the problem could well be the condensor, but more likely in the coil connections to the secondary. You can get these answers INSTANTLY, EFFORTLESSLY and DIRECTLY by watching your dashboard ammeter. It"s difficult to say how much discharge your meter will read with the ignition on and engine at rest, but it should be in the ballpark of three amps IF the twelve-volt conversion was done correctly. If you have three amps, crank. The meter should fluctuate as the points open and close. No fluctuation, no spark.
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