Flying Magnet Crank Trigger Kit
General Wiring
Figure 1 Setting the Air-Gap.
These instructions cover the wiring and general installation tips of all the MSD Flying Magnet Crank
Trigger Kits. For installation of the brackets and trigger wheel refer to the enclosed Installation
Instructions for each specific kit.
SETTING THE AIR-GAP
The air-gap between the trigger wheel and the non-magnetic pickup is important to the operation of
the crank trigger system, however its adjustment does not affect engine power or performance. The
proper air-gap will result in a good trigger signal at cranking rpm through high rpm with no interference
to the wheel. The optimum setting is generally between 0.050" – 0.080".
With the brackets and trigger wheel mounted (with the arrow on the wheel facing out) position the
pickup within 0.050" – 0.080" from the wheel then tighten the locknut (Figure 1). Do not over tighten
the locknut.
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