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webber carb adjustment


mtdripo

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  • 1 month later...

As far as jetting goes, read this article on jetting a single carb for a Datsun 4-cyl. Apply the principles to your car. usually the Webers need to be leaned out from the jets they come with from the factory, even with a cam in your engine.

http://www.dimequarterly.tierranet.com/articles/tech_weber_tuning.html

As far as syncing them to each other, they don't have adjustments on the primary jets; only on the idle. Close the richness jets and open them both up 2 turns. adjust the idle speed screw on each the same untill you have an 800-900 rpm idle. Turn the mixture screw in slightly on each one to "lean" your idle down to 700-750rpm or wherever you prefer.

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