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on the carb there is a plate that moves when you throttle up and returns to a stop screw when throttled down. This stop screw is the idle adjustment, turn it in until you reach your desired idle rpm.

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why does my 4.75 BRIGGS & STRATTON lawnmower engine idles high and low when cutting my grass


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Some Briggs and amp Stratton governor systems feature a governed idle. What performance benefit does this feature provide?

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