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on 27/12/2002 11:59 PM, Daniel Baum at dbaum@isdn.net.il wrote: > Anyone have any ideas, other than trial and error until it works? Personally > I suspect that the idle circuit is still fractionally too rich. Also, should > there be any difference between working with the air cleaner and without it? > All my tuning up to now has been without it, and it seems a bit different > (it seems to behave as if it is running slightly richer) since I put it > back. I have put new O-rings on the carbs, which seal very well. I have found that I get better results if I perform the whole usual tune-up procedure, then put the air cleaner back on, then readjust the mixture to get it just right. Also, I find the idle slows down (mixture richens) when I put the breather pipe back on the air cleaner so I always set the idle about 50 rpm higher than what I want to compensate. The behaviour that you are experiencing almost makes it sound like the carbs are icing up, but I have never heard of that with dual carbs on a VW before. Ben Doughney '75 1200L '63 1200 - Ringo '71 1600TL http://members.tripod.com/~superkafer/ ------------------------------------------------ To unsubscribe, E-mail to: <type3-off@vwtype3.org> For more help, see http://vwtype3.org/list/