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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Poor starting on new Amal and BTH Magneto
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<blockquote data-quote="Magnetoman" data-source="post: 46410" data-attributes="member: 2806"><p>Low resistance of the carbon/brass contact isn't too much of an issue because if the voltage is enough to overcome the resistance of the air in the 0.018" gap of the spark plug, it won't have much of a problem with the resistance at that interface. However, a patina is an oxide film, so ideally it would be a shiny unoxidized brass surface. But, all I do to clean a slip ring is to use a piece of cloth to remove any build up of carbon dust. Unless there is wear, in which case I also turn it in the lathe. That certainly removes all patina. Lubrication isn't an issue, because the graphite in the brush is self-lubricating.</p></blockquote><p></p>
[QUOTE="Magnetoman, post: 46410, member: 2806"] Low resistance of the carbon/brass contact isn't too much of an issue because if the voltage is enough to overcome the resistance of the air in the 0.018" gap of the spark plug, it won't have much of a problem with the resistance at that interface. However, a patina is an oxide film, so ideally it would be a shiny unoxidized brass surface. But, all I do to clean a slip ring is to use a piece of cloth to remove any build up of carbon dust. Unless there is wear, in which case I also turn it in the lathe. That certainly removes all patina. Lubrication isn't an issue, because the graphite in the brush is self-lubricating. [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Poor starting on new Amal and BTH Magneto
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