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on 22/3/2001 7:13 PM, Steven Ayres at comwest@well.com wrote: > Has the car been running well before in your experience? When you keep it > running with the throttle open, is it running smoothly? Can you tell whether > it's running on all four? Unsynchronized carbs are more likely to idle than > accelerate OK. If it's running more or less smoothly but just won't idle, it > could be something as simple as a sticky butterfly or your idle air > adjustment, which is both touchy and crucial. You could be on the right > track, but I'd have to put a lot more effort into diagnosis before I'd even > consider opening up the carbs. I have noticed the easiest way to tell if the carbs are not in sync is to quickly snap the thottle a bit and you will hear a sort of a cough, if they are in sync, it should sound smooth when you do this. BTW. Has anyone got any smart ways of setting the idle air screw? I am running 32PDSIT's on my beetle, everything is stock as it is on a Type III except for the linkage which is a custom one. At the moment I am only getting about 13 miles per gallon! I can get the idle screw spot on, but it is harder to get the idle air screw right. HTH, Ben Doughney '71 1302S ------------------------------------------------------------------- List info at http://www.vwtype3.org/list or mailto:help@vwtype3.org