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carb adjustment--stumble on acceleration

To: 6pack@autox.team.net
Subject: carb adjustment--stumble on acceleration
From: SamuelsMA@aol.com
Date: Thu, 20 Oct 2005 22:11:51 EDT
Listers:
 
My '76 now has a minor but noticeable stumble on acceleration, but only  when 
the car is cold.  For the first 3/4 mile or so, each time I  accelerate I 
feel it stumble once or twice as the revs increase.  This  habit disappears 
after 
that.  I usually use the choke until it isn't  required any more (a few 
blocks).  When I say cold, by the way, the car  never gets REALLY cold, because 
the 
lows in Miami right now are about 75 degrees  in the middle of the night.
 
The only other clue is that the plugs on cylinders 1-3 are clearly somewhat  
sooty.  The plugs on cylinders 4-6 are a nice toasty gray-brown.
 
The Haynes manual has a procedure on page 65 to set the mixture.  It  
requires a special tool (BMC S353) to adjust the air valve stem in the  
dashpot.  Am 
I on the right track here?
 
Thanks.
 
Michael
'76 Tahiti Blue
CF 57044U




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