Quote:
Originally Posted by EdT82SC
My understanding is this could be a bad voltage regulator. The tach will bounce around, and the engine run rough when the voltage spikes.
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It's a good thought. Mine never ran rough when the V reg was tired but it did vary the voltage at the battery all the time. Tach jumping was intermittent. Maybe mine was just tired and had not gone totally nutso. Maybe if it allows high spikes of voltage?
On a side note, the tach wire goes through the 14 pin connector - #12. Worth a peek there but doubt it would make the engine run bad at the same time??