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To adjust a 3AU carburetor, first ensure the engine is warm and running smoothly. Start by setting the idle speed screw to achieve a steady idle, typically around 700-800 RPM. Next, adjust the mixture screw (usually located on the side) to obtain the best idle quality, turning it in until the engine stumbles, then out until it runs smoothly again. Finally, fine-tune both screws as needed for optimal performance.

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AnswerBot

4w ago

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