MSD 8918 Tach Signal GMR Pickup Installation - Manual (Page 4)

TO GROUND
ON CYLINDER
HEAD
BLACK
RED
IGNITION
TM
CHASSIS
GROUND
GMR PICKUP
NOTE: The brass screw must be used for proper operation.
PRIMARY COIL (+) WIRE OR
DIESEL INJECTOR 12 VOLT WIRE
WASHER MUST BE ON TOP OF METAL TAB METAL TAB
BLACK
GROUND
GMR PICKUP
RED
GREEN
SWITCHED
12 VOLT
SIGNAL
OUTPUT
TO RPM ACTIVATED DEVICE
GMR PICKUP
NOTE: The brass screw must be used for proper operation.
PRIMARY COIL (+) WIRE OR
DIESEL INJECTOR 12 VOLT WIRE
WASHER MUST BE ON TOP OF METAL TAB METAL TAB
GMR PICKUP
BLACK GROUND
RED
SWITCHED
12 VOLT
SIGNAL
OUTPUT
GMR PICKUP
GREEN
TO RPM
ACTIVATED DEVICE
Figure 6 Wiring the 12 Amp Pro Mag with GMR and PN 8963 Shift Light.
Figure 5 GMR to PN 8963 Shift Light on Pro Mag 44 Electronic Points Box.
Service
In case of malfunction, this MSD component will be repaired free of charge according to the terms of the warranty. When
returning MSD components for warranty service, Proof of Purchase must be supplied for verification. After the warranty period
has expired, repair service is based on a minimum and maximum fee.
All returns must have a Return Material Authorization (RMA) number issued to them before
being returned. To obtain an RMA number please contact MSD Customer Service at 1 (888) MSD-7859 or visit
our website at www.msdperformance.com/rma to automatically obtain a number and shipping information.
When returning the unit for repair, leave all wires at the length in which you have them installed. Be sure to include a detailed
account of any problems experienced, and what components and accessories are installed on the vehicle. The repaired unit will
be returned as soon as possible using Ground shipping methods (ground shipping is covered by warranty). For more information,
call MSD at (915) 855-7123. MSD technicians are available from 7:00 a.m. to 5:00 p.m. Monday - Friday (mountain time).
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
© 2012 Autotronic Controls Corporation
FRM29674 Revised 01/12 Printed in U.S.A.