The object of this experiment was to determine the extent of the fire hazard from ignition equipment, how the fires are started, and how the fire hazard can be eliminated. Results and Conclusions: 1. Internal explosions may occur in ignition apparatus now in use when gasoline is sprayed over the outside. 2. The gasoline on the outside of the magneto or distributor may be ignited by the flames blown out through the ventilating holes or other openings. 3. Ignition apparatus can be made to catch fire when sprayed with gasoline, but usually no fire occurs when the magneto or distributor is thoroughly soaked with gasoline. 4. A fireproof ventilating-hole cap has been developed for all existing types of ignition apparatus. 5. A standard method of testing ignition apparatus for fire hazard has been worked out.