PerTronix Ignitor LU-166AP12 - Manual (Page 2)

Ignitor COMMON QUESTIONS AND ANSWERS
Q. What is the first thing I should check if the engine would not start?
A. Make certain all wires are connected securely to the proper terminals.
Q. The engine will not start or runs rough. Are there any tests I can do?
A. Yes, remove the black wire from the ignition switch wire. Connect jumper wire from the negative (-) side of battery to
the Ignitor black wire. If the engine starts and runs well, you may have high resistance thru your Ignition switch. This is
just a test. Not intended for permanent installation.
Q. How can I fix a high resistance problem?
A. High resistance can be caused by an external ballast resistor, resistance wire or in some cases a resisted ignition
switch. If the proper coil is used, remove or bypass all external resistors.
Q. Should I remove the starter bypass wire?
A. No, the starter bypass wire is needed to provide voltage while starting (cranking).
Q. What type of coil do I need?
A. The ignitor is compatible only with a “points type” coil. Eight cylinder engines require a minimum of 1.5 Ohms of
resistance in the primary circuit. Four & six cylinder engines require a minimum of 3.0 Ohms of resistance (primary).
Q. How do I check my coil for resistance?
A. First you need an ohmmeter. Remove all the wires from the coil. Attach the ohmmeter to both the positive and
negative terminals. The reading should be 1.5 Ohms or greater for eight cylinder engines and 3.0 Ohms or greater for
four & six cylinder engines. (Your local auto parts store can do this for you if you don’t have an ohmmeter)
Q. What do I do if my coil does not have enough resistance?
A. You may purchase and install a ballast resistor from your local auto parts store. You may also choose to purchase a
Flamethrower 40,000-volt coil, which provides resistance internally. Note: Many vehicles come with resistor wire or a
ballast resistor. These applications do not need an additional resistor.
Q. What happens if you leave the ignition switch on when the engine is not running?
A. This can cause your coil to overheat, which may cause permanent damage to the coil and the ignitor.
Q. May I modify the length of the wires?
A. Yes, you can cut the wires to any length your application may require. You may also add length of wire if needed
(20-gauge wire). Please make sure all wire splice are clean and connections are secure.
Q. How can I get additional help?
A. Call our tech line (909-599-5955) for any further instructions or questions.
WIRING INSTRUCTIONS
1. NOTE: A BALLAST RESISTOR OR RESISTOR WIRE MAY OR MAY NOT BE
INCLUDED IN THE ORIGINAL EQUIPMENT.
2. Remove the ignition switch wire from the negative coil terminal. Connect the black Ignitor
wire directly to the ignition switch wire.
3. Connect the Ignitor black/white wire to negative (-) side of the ignition coil.
4. Connect an insulated, AWG 20 copper stranded wire from the positive coil terminal to the
positive battery or chassis.
5. The black/white Ignitor wire and the AWG 20 copper wire should be the only wires
connected to the coil.
6. Make sure all wires are connected correctly, and reconnect battery.
7. The engine can now be started. Let the engine run for a few minutes and then set the
timing in the conventional manner.
6. Reinstall the rotor, and the distributor cap. Make sure all spark plug wires are securely attached.
7. See Wiring Instructions.