Instructions Back to list AccuTech™ Digital Tach Install & Operation Green wire: to "Tach" output on ignition box or to negative side of coil on non-electronic points system. NEVER connect directly to a How to Wire a Tachometer | It Still Runs Connect the green wire to the negative post of an existing electronic coil or Electronic ignition system using a tachometer adapter as a connector. Connect the white wire to the inside lighting switch, which will illuminate the tachometer when the headlights are on. The red wire is for the ignition switch.[PDF] Tachometer Installation and before cutting any holes All tachometers can be programmed to function with gasoline engines or with diesel engines, and can be used with most ignition coils. These instructions describe the installation, wiring, calibration and operation of all VDO Programmable Tachometers. Each tachometer’s analog display clearly shows the P-1000 Electronic Digital Engine Tachometer The digital display eliminates problems with lack of resolution, parallax and guess-work associated with analog displays. No interploation of analog dial markings is needed. The P-1000 provides smooth display operation uncommon in digital tachometers. The display is back-lit with a soft, long-life electroluminescent lamp for easy reading at night. Related searches for wiring a digital tachometer wiring a tachometer diagramtachometer wiring instructionstachometer wiring schematichow to connect tachometer wiringelectronic tachometer wiring diagramharley tachometer wiringford tachometer wiring diagramaftermarket tachometer wiring