"Cory Dunkle" <cadnews@verizon.net>, being of unsound mind, did utter in
news:K8Srb.20263$y95.10052@nwrdny01.gnilink.net:

> I have an '86 Prelude with the 1.8 dual carb engine. When I release
> the gas pedal to shift the RPMs will usually rise a bit and then
> slowly come down, sometimes the RPM just stays where it is for a
> second then drops. Why might this be happening


Vacuum-operated emission control dashpot that holds the throttle open
briefly when you let up off the gas to shift. Common with carbs after about
1973.


> and what can I do to
> fix it?


Disconnect the damn thing. A real PITA they are.

Look for a round, diaphragm-looking thing with a vacuuum hose going to it
and with a bracket and screw impinging upon the throttle linkage. Be aware
that if you have to go for emissions tests once in a while, you'll need to
reconnect it before being tested. Also understand that if you have state
enviro-Nazis patrolling your roads, they take a very dim view of
disconnected smog shit. You can also just back off the adjusting screw
until it does not touch the bracket and thus does not hold the throttle
open. This method is not obvious to the eye and will be easier to get away
with.

--
TeGGeR®