MSD 8910 Installation

NOTE: IF SEPARATE, SPLICE IN TACH WIRE.

Tach Adapter

PN 8910

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Some tachometers or factory fuel injection systems may not interface directly with an MSD Ignition Control. The PN 8910 is designed to correct this problem by producing a signal similar to the factory setup for these applications. The PN 8910 will convert the trigger signal into a signal the factory tachometer or fuel injection recognizes.

Note: The PN 8910 is designed for non-current limiting (originally equipped with a ballast resistor)

such as breaker points or optical triggered distributors.

INSTALLATION

1. Mount the Tach Adapter in a location away from direct engine heat making sure the wires reach the MSD unit and the coil.

2. Splice the White wire from the PN 8910 into the MSD's White (trigger) wire.

3. Splice the Red wire from the PN 8910 into the MSD's Red (switched 12 volts) wire.

Figure 1 Wiring the Tach Adapter.

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

Some tachometers may also require the supplied Diode to be installed inline of the White MSD wire.

COIL

BATTERY

(+)

(-)

IGNITION

Multiple

Spark

Discharg

PART NO.

AUTOTRONIC CONTROLS CORPORATION

SERIAL NO..

BLACK

FROM

IGNITION KEY

(ORIGINAL COIL + WIRE)

IGNITION KEY

RED

TO 12V

ORANGE

HEAVY RED

HEAVY BLACK

TACH

OUTPUT

MAGNETIC PICKUP (NOT USED)

DIODE

ASSEMBLY

WHITE

RED

FROM POINTS

OR ELECTRONIC

IGNITION AMPLIFIER

(ORIGINAL COIL - WIRE)

PN 8910

DIODE

ASSEMBLY

WHITE

NOTE: IF SEPARATE, SPLICE IN TACH WIRE.

Install the Diode connector as shown below.

Figure 2 Wiring With the Diode Assembly.

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).

SD warrants this product to be free from defects in material and workmanship under its intended normal use*, when properly installed and purchased from an authorized MSD dealer, for a period of one year from the date of the original purchase. This warranty is void for any products purchased through auction websites. If found to be defective as mentioned above, it will be repaired or replaced at the option of MSD. Any item that is covered under this warranty will be returned free of charge using Ground shipping methods. This shall constitute the sole remedy of the purchaser and the sole liability of MSD. To the extent permitted by law, the foregoing is exclusive and in lieu of all other warranties or representation whether expressed or implied, including any implied warranty of merchantability or ﬁtness. In no event shall MSD or its suppliers be liable for special or consequential damages. *Intended normal use means that this item is being used as was originally intended and for the original application as sold by MSD. Any modiﬁcations to this item or if it is used on an application other than what MSD markets the product, the warranty will be void. It is the sole responsibility of the customer to determine that this item will work for the application they are intending. MSD will accept no liability for custom applications.

Limited Warranty

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

FRM28850 Revised 01/12 Printed in U.S.A.