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Tach or? 700 1986

posted by  Bill Bretherton on  Sun Oct 2 04:48 CST 2005
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last visit: Wed Oct 22 12:52 CST 2014
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The tach is driven by a pulse train from the power stage which, in effect, provides a varying frequency related to engine speed which is converted to a varying voltage by the tach circuit i.e. the tach is a voltmeter. IMO the odd glich from the tach can be ignored - mine does it sometimes. It might indicate a failing power stage if the jumps are frequent or it might be tach circuit instability. If the engine runs normally, ignore it. Regards.
--
BillB






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New Tach or? [700][1986]
posted by  volbro245  on Sat Oct 1 09:26 CST 2005 >


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