[s-cars] smoke, rough run on startup (intermittent)

[Dave Burig]

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Lately I have been experiencing an intermittent problem on startup.  Maybe
once a week when I start the car, it will barely run, bucking away at
300-500 rpm, belching out white smoke.  Usually this only lasts for a few
seconds, but Saturday it lasted about a minute.  Only happens on cold start.
Smoke smells like fuel.  Once the problem goes away, no more problem for the
duration of the drive.  I have noticed that my exhaust tips are black and
sooty.  Any ideas?

DB
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