View single post by Esprit2
 Posted: 02-10-2020 10:32 pm
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Joined: 05-01-2005
Location: Minneapolis, Minnesota USA
Posts: 458
It's not unusual for installing an electronic ignition system to cause a tach to stop functioning correctly. The needle may still move, but the indicated RPM may be way off.

Pertronix sells a Tach Adapter Module. I've not used one, and can't say if it will work with a Smiths, Jaeger or JH tach.

Tim Engel

Last edited on 02-10-2020 10:34 pm by Esprit2