voucht
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| posted on 2/7/23 at 01:37 PM |
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Tacho wiring
Hi,
Long story short, I finished my Café Racer from a Kawasaki ZX550 from 1984. Works well now, but I'm struggling setting up the number of pulses on
the electronic tachometer to have the right rev displayed.
I have 4 cylinders.
I have 2 ignition coils, one for cylinder 1-4 and one for cylinders 2-3.
2 wires arrive on each coil : one earth (-), and one from the ignition contrôler (+).
The wire to the tacho which gives the rev signal comes from ignition cable (+) that goes to coil 1-4.
Should I set-up my electronic tachometer on 1 pulse, 2 pulses, or 4 pulses ?
Thank you.
555
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Prof_Cook
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| posted on 2/7/23 at 07:05 PM |
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Found this page: https://www.kawasakiversys.com/threads/speed-tacho-signals.21391/
This page is for a Kawasaki, but not the ZX550? but for 650 and states;
"For the Tacho signal, the service manual refers that 133Hz will display 4000 RPM. Well, 4000 RPM is 66.6Hz hence, this signal might be 2 pulses
per revolution.... "
So the answer appears to be "2".
[Edited on 2-7-23 by Prof_Cook]
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voucht
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| posted on 2/7/23 at 10:43 PM |
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Thank you for your answer.
Though, Kawasaki 650 Versys is a twin, not a 4-cylinders (I know, I used to own one  )
So I'm not sure I can rely on this.
Thank you.
555
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