SOHC.co.uk Forums > CB500/550

CARBS/CLUTCH

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Dave M:
As far as the air screw goes, it depends where it sits on the carb.

If it is positioned on the engine side of the throttle butterfly then the screw controls the idle fuel flow so turning the screw in will make the idle mixture leaner.

If it is on the airbox side of the throttle butterfly then the screw is an air bleed so turning it out will make the mixture leaner.

On my F2 turning the screws out leans the idle mixture.

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