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Date:         Tue, 21 Aug 2007 07:10:20 -0400
Reply-To:     Mike S <mikes@FLATSURFACE.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Mike S <mikes@FLATSURFACE.COM>
Subject:      Re: Rough running till warmed up
Comments: To: David Kao <dtkao0205@YAHOO.COM>
In-Reply-To:  <455121.24706.qm@web82712.mail.mud.yahoo.com>
Content-Type: text/plain; charset="us-ascii"; format=flowed

At 01:15 AM 8/21/2007, David Kao wrote...
>Try to turn the idle adjustment screw CCW half a turn to one or two
>turns. This should make some improvement for the idle. If the idle
>becomes
>too fast then turn it back half a turn. Usually this will improve
>horse power quite a bit.


I've seen this claim a few times. Why would that be the case?


Isn't the idle screw simply an air bypass in the throttle body? How
does changing the small amount of air which is allowed to bypass a
closed throttle plate have any significant effect on the amount of air
which flows when the throttle is fully open?
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