Weber 34DMS: "By-Pass Idling"

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opus10583
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Your car is a: 1978 CS1
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Weber 34DMS: "By-Pass Idling"

Post by opus10583 »

Hi,

The 34DMS has two adjustable idle circuits; one a straightforward needle valve, the other a vented needle valve.

The latter is labeled "by-pass idling" on the Weber diagram.

Can anyone explain the intent/purpose/function, and tuning consequences/procedure of this "by-pass idling" circuit?

Thanks!
Mark

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...Yes; I know what it means: Fabbrica Italiana Automobili Torino.

DOLCETTO: 1978 CS1; 10:1, DMS, 4-2-1...
ANDIAMMO: 2012 500 ABARTH

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