Frequently Asked Questions

My tachometer is not functioning or is inaccurate after installing the Ignition system.
Occasionally after upgrading to electronic ignition, some tachometers experience  compatibility issues. In most cases we are able to get the tachometer to function again using one of the two methods. There are two basic forms of tachometers we encounter. The first and most popular uses the coil negative signal to determine RPM. The second is wired inline with the primary ignition circuit and registers RPM off the current. For tachometers that use coil negative signal follow the attached instructions. For current registered tachs read the attached document titled Current Tachs.

Rally Tachometer;smith tachometer;volvo tachometer;Ford tachometer

Attachments: Volvo tach Document.pdf (222 kb)  Tachometer fixes for 12V signal style _2_.pdf (28.1 kb)  smith tachs.pdf (384.3 kb)  Ford with factory Tach.jpg (59.8 kb) 

 Last updated Fri, Nov 16 2018 11:04am

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