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6421
MSD 6421 User Manual
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INST
ALLA
TION INSTRUCTIONS
11
MSD
•
WWW.MSDPERFORMANCE.COM
•
(915)
855-7123
•
FAX
(915)
857-3344
MSD SYSTEMS
Installing to an MSD Distributor PN 8360.
INDICA
TES CONNECTION
•
IGNITION
KEY
TO 12V
ORANGE
WHITE
RED
RED
BLACK
ORANGE
BLACK
TO GROUND
DISTRIBUTOR
PN 8360
RED
MAGNETIC PICKUP
(NOT USED)
+
HEAVY RED
HEAVY BLACK
TO BATTERY
TO BATTERY
+
ORANGE (TO COIL +)
BLACK (TO COIL -)
RED
GREEN (-)
VIOLET (+)
WHITE
BLUE
WHITE/BLUE
HALL-EFFECT
(NOT USED)
2-STEP/LAUNCH
(12V TO ACTIVATE)
GRAY
TACH OUTPUT
MSD SYSTEMS
Installing to a Hall-Effect Trigger Distributor
.
INDICA
TES CONNECTION
•
IGNITION
KEY
TO 12V
ORANGE
WHITE/
BLUE
RED
RED
TRIGGER
GROUND
TO GROUND
HALL-EFFECT
12 VOLTS
MAGNETIC PICKUP
(NOT USED)
+
HEAVY RED
HEAVY BLACK
TO BATTERY
TO BATTERY
+
ORANGE (TO COIL +)
BLACK (TO COIL -)
RED
GREEN (-)
VIOLET (+)
WHITE/BLUE
BLUE
WHITE
POINTS/AMPLIFIER
(NOT USED)
2-STEP/LAUNCH
(12V TO ACTIVATE)
GRAY
TACH OUTPUT
10
12
Table of Contents
Operation and Features
1
Rev Limiter
2
Battery
2
Coils
2
Tachometers/Spark Plugs and Wires
2
General Information
2
Installation Instructions
3
Mounting
3
General Wiring Information
4
Programming
5
Cylinder Select
5
Troubleshooting
6
Prestart Check List
6
No-Run on Foreign Vehicles
7
Inoperative Tachometers
7
Engine Run-On
7
Tachometer Compatibility List
7
Misses and Intermittent Problems
8
Checking for Spark
9
If Triggering with the Magnetic Pickup
9
MSD Systems Installing to Points/Amplifier Style Ignition
10
MSD Systems Installing to an MSD Distributor/Crank Trigger
10
MSD SYSTEMS Installing to a Hall-Effect Trigger Distributor
11
MSD SYSTEMS Installing to an MSD Distributor PN 8360
11
MSD SYSTEMS with an MSD Timing Control (Points or Amplifier)
12
Typical Drag Race Setup with Timing Control and Two Step Selector
12
GM IGNITIONS Wiring a Dual Connector Coil
13
Wiring the 1996 and up Single Connector Coil Without Harness
13
GM IGNITIONS Wiring with an MSD Wiring Harness
14
MSD SYSTEMS Wiring with an MSD Power Grid
14
Installation Instructions
14
GM IGNITIONS GM Large Cap HEI Distributors
15
GM IGNITIONS Wiring an HEI 4-Pin Module (Magnetic Pickup Trigger)
15
GM IGNITIONS Wiring an HEI 5 or 7-Pin Module (Amplifier Trigger)
16
FORD IGNITIONS Wiring a Ford Duraspark Using White Wire Trigger
16
FORD IGNITIONS Wiring a Ford Duraspark Using Magnetic Pickup Trigger
17
FORD IGNITIONS Wiring a Ford TFI (Without Harness)
17
FORD IGNITIONS Wiring a Ford TFI with Harness, PN 8874
18
Wiring a Chrysler Electronic Ignition Using Magnetic Pickup Trigger
18
CHRYSLER IGNITIONS Wiring a Late Model Dodge with 2-Pin Connector
19
HONDA IGNITIONS Wiring a Honda with Internal Coil
19
HONDA IGNITIONS Wiring a Honda with a Blaster Coil and Power Cap
20
HONDA IGNITIONS Wiring a Factory External Coil Honda/Acura
20
General Import Wiring
21
Wiring a Mallory Unilite or 9000 Series Using Points Trigger
21
Wiring a Mallory 9000 Series Using Magnetic Pickup
22
Wiring to a Pertronix Ignitor Kit
22
Wiring Atomic with PN 6421
23
Wiring Atomic with PN 6421 to Use with Timing Control
24
Tech Notes
25
Limited Warranty
28
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MSD 6421 Specifications
General
Brand
MSD
Model
6421
Category
Control Unit
Language
English
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