MSD 8734 Launch Master for Modular Ford Engines Installation - Manual (Page 3)

INSTALLATION INSTRUCTIONS 3
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 7 - 5 2 0 0 • F A X ( 9 1 5 ) 8 5 7 - 3 3 4 4
CONNECT THE ACTIVATION WIRE
The launch rpm limit can be activated through a ground or a 12 volt source.
Ground: Switch the Blue wire to ground to activate the launch limit.
12 volts: Connect the White/Blue wire to 12 volts to activate the launch limit.
CONFIRM INSTALLATION
With the power On, engine running, activate the clutch or On/Off switch. If connected correct, the LED will
illuminate when the clutch is activated. To verify the rpm, set the limit at a lower rpm, such as 3,000, and
test the system.
If the engine has trouble starting or running. check the following:
• Ground or switched 12 volts connection
• Coil connections
• The two 8-pin connectors may be in the wrong position and should be swapped and tested again.
GROUND
ACTIVATION
WIRES WHITE BLUE
BLUE
ACTIVATES
WITH 12 VOLTS
OR GROUND
TAN
RED
BLACK
GRAY
NOTE: IF THE LED DOESN'T TURN ON, AS
DETAILED IN STEP 5, FOLLOW THIS
DIAGRAM.
OR
NOTE: DO NOT USE THE BLUE AND BLUE/WHITE
WIRES AT THE SAME TIME.
BLUE - ACTIVATED WHEN GROUND
WHITE/BLUE - ACTIVATED W/12 VOLTS
Figure 2 Alternate Wiring.
Figure 3 Wiring the Launch Activation Wire.