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To adjust a 3.5hp Tecumseh carburetor, start by locating the idle speed and mixture adjustment screws. Begin with the idle speed screw, setting it to achieve a steady engine idle. Next, adjust the mixture screw slowly while the engine is running, turning it clockwise to lean the mixture or counterclockwise to enrich it until the engine runs smoothly. Always make small adjustments and test the engine's response to find the optimal settings.

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8mo ago

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