Okay, I realize that I should search the archives first, but in the
short time that I've been here, there've been quite a few different
discussions about idle problems.  I'm dubious about my chances of
finding the right answer, so I thought I would ask here instead.

My '87 Westy starts up beautifully every time (so far!) and idles at
about 900 RPMs.  After I've driven a short ways, 5 or 10 minutes, the
idle moves up to about 1800 RPMs when I stop and put the transmission in
Park.  Mileage is about 17 MPG if this matters.  Any ideas why the idle
would jump up so much when warm?

Thanks all,
Marc Perdue
'87 Westy