M S D
• W W W . M S D P E R F O R M A N C E . C O M • ( 9 1 5 ) 8 5 5 - 7 1 2 3 • F A X ( 9 1 5 ) 8 5 7 - 3 3 4 4
FEATURES
• Large and easy to read display
• 9 different crank types
• Points and Magnetic signal
• Cam Sync output
• Test mode RPM scan
• Battery readout
• Dwell/Duty-Cycle control
DIAL RPM SELECTION
The RPM dial can be pressed to
select between ‘Fine’, ‘Coarse’ & ‘Auto’ to
help find your target RPM
KNOB FUNCTIONALITY
Parts Included:
1 - Digital Ignition Tester, PN 89981
1 - Test Plug
1-Power Grid Adapter Harness
Universal Ignition Tester
PN 89981
ONLINE PRODUCT REGISTRATION: Register your MSD product online. Registering your product
will help if there is ever a warranty issue with your product and helps the MSD R&D team create
new products that you ask for! Go to www.msdperformance.com/registration.
2
2
IGNITION TESTER 89981
V 1.0.0
SN 5
Figure 1 PN 89981 Universal Ignition Tester
WIRING
RED
BLACK
WHITE
GREEN
VIOLET
BLUE
GREEN
POWER
GROUND
POINTS
MAG -
MAG +
CAM +
CAM -
CONNECT TO 12V OR BATTERY (+)
CONNECT TO GROUND OR BATTERY (-)
FOR TESTING POINTS (WHITE WIRE) INPUT OF AN MSD
IGNITION, SHIFT LIGHTS, TACHOMETERS & RPM SWITCHES
FOR TESTING THE MAGNETIC INPUT CIRCUIT OF MSD IGNI-
TIONS. PLUGS DIRECTLY INTO THE MSD MAGNETIC PICKUP
CONNECTOR,
FOR TESTING THE CAM SYNC PICKUP CIRCUIT OF AN MSD
PROGRAMMABLE IGNITION OR CPC IGNITION SYSTEM PICK-
UP CONNECTOR.
BATTERY
POINTS
MAGNETIC
CAM SYNC
PROGRAM
SELECTION DIAL
BATTERY
USB PORT
IS USED FOR
UPGRADES
USING MSD
VIEW
Turn the knob clockwise to move upward through menu items or increment values; turn the knob
counter-clockwise to move downward through menu items or decrement values.
Quickly press and release the knob to confirm a selection, or press down for 2 seconds to access
menus.
POWER GRID ADAPTER
GREEN
VIOLET
MAG -
MAG +
ADAPTS TO THE POWER GRID 3 PIN MAGNETIC PICKUP PIG-
TAIL. SEE FIGURE 2.
