1985 Other Chevrolet Models Rough Idle

1985 CHEVROLET
66,000 MILES • V8 • 2WD • AUTOMATIC
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MAGPIEMINI
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I have a 1985 Winnebago Chieftain with a chevy 454. When cold it idles very rough and dies unless I give it gas. the choke is closed full when cold and as it warms up the choke opens and it runs perfect, passes smog with flying colors. I have tried to open the choke flap a bit when cold but that makes it worse. Is there a screw to control the amount of throttle applied when the choke is on full?
Apr 28, 2010 at 5:08 PM
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RASMATAZ
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Try adjusting the initial choke opening and fast idle cam
Apr 28, 2010 at 6:59 PM
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MAGPIEMINI
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I can not find the fast idle cam, with my eyes or my fingers. From what I have read, it should be below and just forward of the electric choke. I can feel the throttle move on that side when I move the throttle on the left side but I can not find a cam or screw.

Lifting the choke plate does not help the idle so far.
Apr 29, 2010 at 3:39 PM
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