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Old 07 May 2014, 09:00   #1
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Tacho testing

Quick question...

If I wanted to test a bog-standard, ex-works, driven from the CDI coil, two-stroke tachometer by putting a square/half-sine wave on the signal pin, what sort of voltage range would I need to cover?

I've no idea what the sort of voltage gets generated for the ignition system.

Thanks
Hugh
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Old 07 May 2014, 11:00   #2
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I would expect it to work on 20 volts peek to peek, even if the outboard drives it harder.

Start low, I would not go above 50v p-p without knowing more...
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Old 07 May 2014, 11:12   #3
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Thanks.
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