I have an 86 Syncro with an idle problem.

At first start, idle is about 1400. Drive down the road to the first
stop sign and it idles at 2000. A quick blip of the throttle and it
will slowly drop to about 1400.

After it warms up, it will idle the majority of the time around 1200,
and about 10% of the time, it will drop to the correct value of
850-900.

Any ideas on where to start?

Drew Jenkins  86 Syncro
laj006@dma.isg.mot.com