For a 1991 Ski-Doo Safari 377, the carburetor settings typically involve adjusting the idle speed and the fuel mixture screws. Generally, the idle speed should be set around 1,200 to 1,400 RPM, while the mixture screws are usually adjusted to about 1 to 1.5 turns out from the fully seated position. It's important to consult the specific service manual for your model, as variations may exist based on environmental conditions and modifications. Always make adjustments gradually and test the engine performance after each change.
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