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Reply to "Unburnt Fuel Smell"

The idle air mixture is adjustable as you probably know already.  We usually try to adjust the mixture to maximize vacuum at idle.  It turns out that you can adjust the screws to get maximum vacuum and set them on either the rich side or the lean side.  Maybe try setting them on the lean side.  I recently used this technique to help eliminate a dieseling problem on engine shutdown.

Are you using vacuum advance?

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