MSD Powersports Launch Master
PN 4350
Note: The Launch Master is a low-rpm limiter that will not- provide nor modify any over-rev protection.
The stock high rpm rev-limiter will still be active.
The MSD Powersports Launch Master is a universal low rpm limiter. The Launch Master will provide
consistent launches and quicker 60-foot times. RPM adjustments are made via two rotary switches
located on the harness side of the unit. The adjustment range is from 1,800 to 9,900 rpm, in 100 and -
1000 rpm increments. An LED will illuminate when the launch rev limit is active.
Note: It is recommended to have the service manual for your motorcycle.
MOUNTING
The Launch Master can be mounted in any position but keep in mind to mount it so the rotary dials
are accessible for adjustments. A section of Velcro is supplied for mounting. Double sided tape or
tie wraps are also recommended depending on the final mounting area. Before mounting the unit,
confirm that the wiring harnesses reach their connections.
4-WIRE CONNECTOR
Signal Connections.
4-WIRE CONNECTOR
12-Volt Connection through this single Red wire.
3-WIRE CONNECTOR
Connects to a good engine ground or the negative battery terminal.
Activation Wire. When grounded, the launch feature will be active. The harness
is supplied from MSD for a ground activation. |
Activation Wire. When switched to 12 volts, the launch feature will be active. (The
position of the blue wire on the connecting 3-pin harness must be moved.)
Note: Never connect both the Blue and White/Blue wires at the same time.
Note: The stock clutch lever or aftermarket clutch lever with momentary switch
can be used to activate the Launch Master.
LED
The built-in LED will illuminate when the Launch Master is activated.
POWERSPORTS - 1490 HENRY BRENNAN DR., EL PASO, TEXAS 79936 - (915) 858-3365 - FAX (915) 858-3496
2 | | INSTALLATION INSTRUCTIONS
Note: Refer to your service manual for coil accessibility.
—
. Locate and disconnect the 2-pin connectors from each of the four ignition coils.
2. Connect the four male 2%in connectors of the MSD to the harness side of the engine’ $5
coil harness. At this point, do not connect the coils.
3. Connect the 4-pin connector with the single Red wire to the MSD harness with the four
~ Orange wires.
4. Turn the power ON at this point to test to see if the wiring is correct. Ground the Blue
launch wire. If the LED turns ON with the Blue wire grounded, the correct connections
were made. If there is no power, swap the Orange connector with the 4-pin harness with
Green wires.
5. Turn the power OFF and connect the four Tan wires of the MSD to the remaining connec-
tor of the harness (either the Green or Orange wires).
6. Connect the harness to the coils.
FOR 12V ACTIVATED LAUNCH pr TO CLUTCH GROUND
MOVE THE BLUE WIRE TO ALIGN
WITH THE WHITE/BLUE WIRE ON
THE CONTROLLER OEM COIL HARNESS
GROUND
IO
||
—+ BLUE
WHITE/BLUE
BLUE
LAUNCH
MASTER
PN 4350
a
CONNECTOR WITH THE
12V SOURCE TO THE
4-PIN CONNECTOR WITH
THE SINGLE RED WIRE.
Ce SE [e
yy
=} y YE
e a
OOO
Figure 1 Wiring the Launch Master.
POWERSPORTS - 1490 HENRY BRENNAN DR., EL PASO, TEXAS 79936 e (915) 858-3365 + FAX (915) 858-3496
INSTALLATION INSTRUCTIONS 3
CONNECTING THE LAUNCH WIRE
Most motorcycles have a clutch switch that provides a ground when the clutch is engaged. This is
the default wiring of the Launch Master. If you prefer to activate the launch limit with 12 volts, disas-
semble the 3-pin connector and move the Blue wire to align and connect with the White/Blue wire
(Figure 2).
||
| BLUE |
CLUTCH
WHITE/BLUE SWITCH
BLUE-ACTIVATED WHEN GROUND
WHITE/BLUE-ACTIVATED W/12 VOLTS (LOCATION OF
BLUE HARNESS WIRE MUST BE MOVED)
Lift and remove the purple Lift the tab and pull on pin Insert Blue wire in slot 'C'.
lock with a small tool. to remove. Reinstall purple lock.
Figure 2 Wiring the Launch Activation Wire.
CONFIRM INSTALLATION
With the power ON, activate the clutch switch. When everything is correct, the LED will illuminate. 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 connection
* Coil connections
* The two 4-pin connectors may be in the wrong position and should be swapped and tested again.
Note: Due to safety controls on some applications, the launch rpm limit may be activated when the
bike is in neutral or when the kickstand is down.
+
POWERSPORTS - 1490 HENRY BRENNAN DR,., EL PASO, TEXAS 79936 - (915) 858-3365 - FAX (915) 858-3496
—
—
TECH NOTES
Service
In case of malfunction, this component will be repaired free of charge according to the terms of the warranty.
When returning components for service, Proof of Purchase must be supplied for warranty verification. After the
warranty period has expired, repair service is charged based on a minimum and maximum charge.
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 (888) 258-3835 or fax a request to (915)
857-3344. Send the unit prepaid with proof of purchase to the attention of: MSD Powersports, Customer
Service - RMA #, 12120 Esther Lama, Dock 5, El Paso, Texas 79936. |
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 after receipt, COD/Cashiers Check for any charges.
For more information, call the MSD Powersports Customer Service Line (888) 258-3835. MSD Powersports
technicians are available from 8:00 a.m. to 5:00 p.m. Monday - Friday (Mountain Time).
Limited Warranty
MSD Powersports warrants this product to be free from defects in material and workmanship under its
intended normal use* and if properly installed, for a period of one year from the date of original purchase. If
found to be defective as mentioned above, it will be repaired or replaced at the option of MSD Powersports.
Any item that is covered under this warranty will be returned free of charge through standard shipping
methods. If faster service is required the customer has the option of paying for this service.
This shall constitute the sole remedy of the purchaser and the sole liability of MSD Powersports. To the
extent permitted by law, the foregoing is exclusive and in lieu of all other warranties or representations
whether expressed or implied, including any implied warranty of merchantability or fitness. In no event
shall MSD Powersports 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 Powersports. Any modifications to this item or if it is used on an application other
than what MSD Powersports 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 Powersports
will accept no liability for custom applications.
POWERSPORTS - 1490 HENRY BRENNAN DR., EL PASO, TEXAS 79936 - (915) 858-3365 - FAX (915) 858-3496
O 2007 Autotronic Controls Corporation
FRM28137 Created 01/07 Printed in U.S.A.
">
