Racepak 280-SN-MAGPU Installation Instructions

INSTALLING THE RPM SPARK PICKUP

Note: Due to the various styles and amperage of magnetos in use today
there is no single instruction that covers all types.
Please locate the schematic for your type of magneto and follow
that diagram closely.
The Primary wire (usually orange or red in color), that connects the magneto to the coil or control
box, must be routed through the Primary Spark Pickup. The wire must pass through the opening in
the pickup (see drawing below). The number of times the wire must pass through the hole will de-
pend on the type of magneto you are using:
These are starting points and will work for most applications. If the engine rpm graph has
spikes that drop below the real rpm then you will need to add a loop. If the engine rpm
graph has spikes that go above the real rpm then you will need to remove a loop.

TYPICAL MALLORY MAGNETO INSTALLATION

MAG
(MAGNETO IGNITION SYSTEMS)
Up To 5 Amp magneto
MSD 12 Amp magneto
MSD 20 Amp magneto
MSD 44 Amp magneto
PRIMARY
SPARK
PICKUP
Run the orange wire through the hole in
pickup four times making three loops.
COIL
4 passes through hole (3 loops)
3 passes through hole (2 loops)
3 passes through hole (2 loops)
1 pass through hole
Connect to black cable of
data logger wiring harness
30402 Esperanza
Rancho Santa Margarita, CA. 92688 USA
Telephone 949-709-5555
www.racepak.com
(no loops)
Fax 949-709-5556