stop particle emitter

I have a motorcycle that when it makes a sharp turn in dirt, an Ellipsoid Particle emitter spits out dirt debris. This works fine, I have it emit for .45f then stop. the problem is that the particles it emitted keep growing and growing until they are huge. I cannot instantiate and destroy because by the time the prefab is instantiated the transform has moved so the dirt does not look like it is coming from under the tire at all. tried parenting the prefab but Unity doesn't allow it. So the emitter sits as a child of the tire so can't be destroyed unless I want one use out of it. I tried copying it and parenting the copy with no luck. The thing is this giant cloud DOES eventually fade away but I do not see the parameters where to change it's lifespan as in the regular particle emiiter