How A Hit and Miss Engine Works....(8hp International) . . The engine slows, the slowing of the engine causes the governor weights to move inward, governor weights unlocks the detent arm, detent arm allows the push rod to drop down, push rod hits a trip lever that triggers the magneto and igniter creating spark, engine fires...speeding the engine up, governor weights move outward locking the detent arm, repeat... #antiquetractorlife #tractor #tractors #engine #dieselengine #diesel #farming #farm