Does this occur only after the car has been running for
around 20 minutes?

If so, I would suspect the ignition coil.

Is this Accord carbureted or fuel injected. How many miles?

See also the free online manual for your 86 Accord at
www.autozone.com . It should have an idle troubleshooting
matrix.

"Physics Boy Wonder" <PhysicsBoyWonder@gmail.com> wrote
>I am trying to fix up an 86 Honda Accord DX that I just
>recently
> bought. It idles really badly and I don't know what the
> problem might
> be. When I stop the RPM bounces from 1,300 to 200. It also
> frequently
> dies in the process of fluctuation. As a result I have to
> throw the car
> in neutral when ever I come to a stop and keep the engine
> revving at
> about 1,500 RPMs. Do you have any ideas of what the
> problem could be?
>