I am currently working on a 1992 honda, problem hard starting fluctuates when running, paid mechanic to diagnose. Answer was need to replace distributor, plugs, and wires.I purchased distributor has I was going to change it I noticed that the rotor was badly worn so I changed it with the cap instead it ran good for a little while after sitting overnight it won't start, but if I put starting fluid it starts what might it be?

It's unclear with your writing whether you installed a new distributor or only a new rotor and cap.