The timing light is for use in synchronizing two magnetos in a
dual magneto ignition system. The timing light is also used to
indicate the exact moment the magneto points open.
The timing light unit is composed of one main unit with a detachable cover.
Remove the four cover screws (see Fig. 1) and lift faceplate from
Note polarity indications on battery holder and install three D
batteries in correct positions.
Check operation by turning switch to On position. BOTH lights should
light and you should hear a buzzing sound from the unit.
Touch all three alligator clips together. Both lights should go out.
Reinstall cover and the four screws.