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BATTERY
Do not lay tools or equipment on the battery. Accidentally grounding the “HOT” battery terminal can shock or burn you and damage wiring, the battery or your tools and testers. Be careful of contact with battery acid. It can burn holes in your clothing and burn your skin or eyes. When operating any test instrument from an auxiliary battery, connect a jumper wire between the negative terminal of the auxiliary battery and ground on the vehicle under test. When working in a garage or other enclosed area, auxiliary battery should be located at least 18 inches above the floor to minimize the possibility of igniting gasoline vapors

HIGH VOLTAGE
High voltage — 30,000 to 50,000 volts — is present in the ignition coil, distributor cap, ignition wires and spark plugs. When handling ignition wires while the engine is running, use insulated pliers to avoid a shock. While not lethal, a shock may cause you to jerk involuntarily and hurt yourself.

CYLINDER SELECTION
This tachometer should be checked for cylinder setting before installation. See figures 1 and 2. Position the CYLinder selector switch (rear of the Sport Tach; front of the Drag’n Tach) so that the switch actuator is opposite the number which matches the number of cylinders in the engine. As noted in the DISTRIBUTORLESS IGNITION SYSTEM CONNECTIONS section of this manual under Chrysler Corporation, connection to Pin 43 of the Single Board Engine Controller on Distributorless Ignition equipped Chrysler vehicles requires that the CYLinder selector switch be set to the four (4) cylinder position, regardless of the number of cylinders in the engine. Suppliers if necessary) and twist it counterclockwise approximately 1/8 turn until it stops. Pull the socket with lamp straight out of the tachometer housing. Remove the lamp from its socket by pulling it straight out.
Replace the lamp as required following the chart above. Reinstall the socketed lamp by rotating it against the tachometer’s PC board until it drops into place, and then rotate it approximately 1/8 turn clockwise until it reaches its mechanical stop.

ZERO ADJUSTMENT
Sport Tach – The tachometer pointer can be positioned precisely on “0” RPM. This sliding tab adjustment is located on the rear of the tachometer housing. With the engine OFF slide the adjustment tab from side to side until the pointer rests on “0”. This adjustment may have to be reset once the tachometer is installed in the vehicle. Drag’n Tach – This tachometer uses an air core meter movement. Electronic zero adjustment has been precisely set and locked in place at the factory. No further adjustment is required.

LAMP SUBSTITUTION OR REPLACEMENT
Your tachometer is supplied with an automotive type, wedge base (Sport Tach) or subminiature wedge base (Drag’n Tach) lamp for illumination. This lamp should provide satisfactory illumination intensity in most applications, however the following substitute lamps are available at or through your local auto or electronics parts store, and may allow you to custom tailor the illumination characteristics of the tachometer to your application. Note the higher the MSCD (Mean Spherical Candela) of the lamp, the brighter it is. The Sport Tach is supplied with a #194 lamp, and the Drag’n Tach is supplied with a #74 lamp. The lamp socket is located at the top rear of the Sport Tach, and in the lower front control housing of the Drag’n Tach. To remove the lamp, gently grasp the black lamp socket (use RED LINE SHIFT POINTER Adjust the RED LINE SHIFT POINTER by sliding it around the meter bezel. This pointer may be set at any point on the meter scale, such as engine red line, or transmission shift point. Note that the setting of the RED LINE SHIFT POINTER does not affect the setting of the “LED turn on” point.

On Ford Tachometer 2.3 liter dual spark plug engines, the DIS module is typically located slightly above, and in front of, the oil filter. There are two (2) 6-pin connectors, one at each end of the module. Pin 12 is the Electronic Ignition System Diagnostic Monitor connection, and will be the end pin of the “PIN 7- 12″ connector. The letters DIS will be molded into the Distributorless Ignition System module housing. On Ford 3.0 liter Super High Output engines, the DIS module is typically located near the top/front of the engine, above the serpentine accessory drive belt. There are two (2) 6-pin connectors, one at each end of the module. Pin 12 is the IDM or Ignition Diagnostic Monitor connection, and will be the end pin of the “PIN 7-12″ connector. The letters DIS will be molded into the Distributorless Ignition System module housing. On Ford 3.8 liter Supercharged engines, the DIS module is typically located behind the serpentine accessory drive belt tensioner assembly. There are two (2) 6-pin connectors, one at each end of the module. Pin 12 is the IDM or Ignition Diagnostic Monitor connection, and will be the end pin of the “PIN 7-12″ connector. The letters DIS will be molded into the Distributorless Ignition System module housing. On Ford 4.0 liter V-6 engines, the EDIS (Electronic Distributorless Ignition System) module is typically located on the fender. On the 4.6 liter V-8 engine, module location may vary. There is one (1) 12-pin connector on the module. Pin 2 is the IDM or Ignition Diagnostic Monitor connection. On Ford 1.9 liter 4 cylinder engines, the EDIS (Electronic Distributorless Ignition System) module location may vary. There is one (1) 12-pin connector on the module. Pin 11 is the CTO or Clean Tach Output connection.

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