View single post by Tom Bradley
 Posted: 03-18-2020 02:30 am
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Tom Bradley

 

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cjwilson wrote:
I am pretty sure it's original. So I should measure AC Current into the tach? My meter goes up to 10A. Is that enough? Do you know what amount of current I should be looking for?

The amount of current will vary depending on the RPM, but will certainly be less than 10A. But measuring this is a waste of time. The current has to be flowing for the engine to run. So if the engine is running OK, then there is no problem in that part of the circuit. The problem would instead be either the +12V or ground connections or internal to the tach.