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post #4 of (permalink) Old 9th June 2009
Technical Supremo

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I googled "connecting a tachometer" and the first site up was the link below and it shows a diagram where the green wire connects to the negative side of the coil .
That is no guarantee it will work though as some tachs work on positive pulse and some on negative pulse. If you look closely most coils will have a negative (minus sign) and positive (plus) marking. If you piggy back the wire alongside the correct one on the coil it should work although I accept no responsibility whatsoever
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