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Farmall & IHC Tractors Discussion Board

Re: w-4 carburetor adjustment

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Posted by Bob M on April 12, 2006 at 10:41:37 from (69.205.119.215):

In Reply to: Re: w-4 carburetor adjustment posted by jcarter on April 12, 2006 at 10:04:20:

Plugged passages in the W4 carburetor will always cause a LEAN condition.

One exception: A plugged air passage in the idle circuit will cause a slightly rich condition at idle. Also with a plugged idle air passage adjusting the idle mixture screw (or even removing the screw completely) will have no effect on how the engine runs.

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