INSTALLATION INSTRUCTIONS

11

WIRING CHECK

WARNING: The 7AL-3 produces very high voltages. Never short the battery or coil terminals. Use

caution during installation and while working near the ignition.

• Checkallofthewireconnectionsmakingsuretheyarecleanandtight.Ifconnectorshavebeen

crimped on make sure they are tight and sealed.

• Makesurethebatteryisfullychargedandproperlyconnected.AlsoconfirmthattheMSDpower

leads are connected properly and are tight.

• WithatestlightcheckthatthereisvoltageontheRED“Ignition”terminaloftheMSDwhenthe

ignition is in both the On and START position.

• CheckthattheonlywiresconnectedtothecoilarefromtheMSD.ORANGEshouldconnectto

the positive terminal (570V), BLACK to the negative terminal (Ground).

Note: DO NOT connect any test equipment to the coil terminals.

After checking the wiring for loose or faulty connections, follow the next steps to confirm that the unit

is “sparking” properly.

CHECKING FOR SPARK

The following procedures will determine if the ignition is producing a spark. Before proceeding, inspect

all of the wiring and ensure that the Green LED is flashing when the engine is cranked. This ensures

that the ignition is receiving a trigger signal .

Magnectic Pickup (Green and Violet):

1. Make sure the ignition is turned OFF and remove the coil wire from the distributor cap. Pull the

boot back so the terminal is easy to see and position the wire 1/2" from ground.

2. Disconnect the magnetic pickup connector from the distributor.

3. Turn the ignition switch to the ON position. DO NOT CRANK THE ENGINE.

4. Take a small lengh of wire and short the Green and Violet wires together 3 or 4 times. A spark

should jump from the coil wire to ground every time the connection is broken.

5. If there is no spark, substitute another coil and test again. If there is still no spark and all of the

wiring connections have been confirmed, contact the MSD Customer Service Line and send the

unit in for repair.

White Wire Trigger:

1. Make sure the ignition is turned OFF and remove the coil wire from the distributor cap. Pull the

boot back so the terminal is easy to see and position the wire 1/2" from ground.

2. Disconnect the White wire from the distributor.

3. Turn the ignition switch to the ON position. DO NOT CRANK THE ENGINE.

4. Tap the White wire to ground 3 or 4 times. A spark should jump from the coil wire to ground when

the white wire is removed from ground.

5. If there is no spark, substitute another coil and test again. If there is still no spark and all of the

wiring connections have been confirmed, contact the MSD Customer Service Line and send the

unit in for repair.