Actually it's common. Just kinda hard to wrap your head around when you first hear about it. And I most likely will attempt to explain it poorly.
If say you need 150 AMPS to crank and engine and power the ignition system with the ignition pulling 10 AMPS. Once the battery pulls down under 150 AMPS available it shorts both the ignition and the starter motor. Say the battery is providing 140 AMPS. With the starter getting 135 instead of 140 you most likely won't even notice it. But with the ignition getting 5 AMPS, 50% of what's needed? Now you have a no start. And different ignition systems can be affected at different levels. 6 volt electronic conversions have a reputation of no start with very small voltage/amperage drops. Points and condenser seem to be more forgiving.
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Today's Featured Article - A Lifetime of Farm Machinery - by Joe Michaels. I am a mechanical engineer by profession, specializing in powerplant work. I worked as a machinist and engine erector, with time spent overseas. I have always had a love for machinery, and an appreciation for farming and farm machinery. I was born and raised in Brooklyn, New York. Not a place one would associate with farms or farm machinery. I credit my parents for instilling a lot of good values, a respect for learning, a knowledge of various skills and a little knowledge of farming in me, amo
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