8139MSD Datasheet, PDF (2/4 Pages) Mallory performance club – MSD 12 AMP Pro Mag Generator

2
WIRING
INSTALLATION INSTRUCTIONS
The Pro Mag is equipped with matching connectors and plugs directly into the Electronic Points Box
and the Kill Switch. The 4-Pin connects to the Generator and the 2-Pin connects to the Kill Switch
(Figure 3).
When routing the wiring harness make sure the wires are not pulled tight to the point of being
stressed. Also, take care to route them away from direct engine heat sources and sharp edges. If
the connectors do not mate together, check for bent or mislodged terminal pins. Do not force the
connectors together!
TACHOMETERS
Figure 3 Wiring the 12 Amp Pro Mag.
MAGNETO TACHS
There are two style Magneto Tachs offered; Voltage triggered and Inductive triggered. Both can be
used with the MSD Pro Mag but wire differently.
Voltage Triggered Mag Tachs: Connect
the tach signal wire to the Orange wire of
the Kill Switch. The tach ground connects to
the Black wire of the Kill Switch (Figure 4).
Figure 4 Wiring a Voltage Triggered Tach.
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