Todd:
I cured this problem by stopping a vacuum leak around one of the four
large rubber hoses that connect the intake manifold to the intake
runners.I noticed the intake manifold did not look centered. I slid the
rubber hoses into position by tapping them on the edge with a large
screw driver.
Good Luck 
Ken Lewis
Kernersville NC
86 Crewcab

On Wed, 28 May 1997 17:09:08 -0500 RubatoGuy@aol.com writes:
>I have an odd occurance with my '88 Westy. In the morning when I start 
>it and
>drive around, it is as if gremlins are in the engine. What happens is 
>that
>occasionally, when at a stop the engine will  decide to idle at 2,000 
>RPM.  A
>good blip on the throttle will bring the idle back down to 900 RPM. 
>There
>seems to be no ryme or reason to when the engine will do this - but it 
>is
>more likely when it is first running.
>
>Ideas?
>
>Todd Last
>
>