On a 12V. system with conventional points, a resistor is required to drop the voltage at the coil + terminal to about 9.5 volts to keep from burning the points. Your 6V system doesn't require it, and it wouldn't run right if you installed one.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
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