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Tach signal, and flooding Q.

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Old 03-04-05, 12:10 PM
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Tach signal, and flooding Q.

Where does the Tach get its signal from? CAS? And does flooding affect that signal?

I'm asking because I have a GXL that floods, however whenever it floods the Tach simply stops moving. I can tell if it will flood or not the instant I start cranking it over by seeing if the Tach needle bounces or not.
Old 03-04-05, 01:17 PM
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I beleive it gets it from both leading and trailling coils.
Old 03-04-05, 01:27 PM
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Tach signal comes from a summed signal of the trailing coils.

Nothing to do with the leading coils...

chances are that if you have no tach, you have no trailing coils firing.

Last edited by Icemark; 03-04-05 at 01:31 PM.
Old 03-05-05, 10:36 AM
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Would trailing's not firing prevent startup? I can't see how they would...
Old 03-05-05, 10:41 AM
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plugs maybe?
Old 03-05-05, 10:44 AM
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Also I forgot to mention, that when this happens, roll starting it seems to work most of the time?
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