View single post by Dan Collier
 Posted: 08-02-2005 03:58 pm
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Dan Collier



Joined: 03-17-2005
Location: Placentia, California USA
Posts: 36
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Has anyone installed the MSD Tach Adapter PN8920? If I pull one of the white wires from the back of the tach, the engine shuts off which I expected. I checked the purple adapter wire and it does has voltage. I connected the purple wire to the tach and can't start the motor unless I put the original white wire back on. History: I recently converted to the Pertronix ignitor, MSD6A ignition, and MSD coil, I'm getting a tach reading of 2100 RPM and I know the motor is running at about 1000 to 1100 RPM by the sound. 

   Smith Tach

Dan Collier
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