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carburetor air cut valve diaphragm for GY6 50cc 139QMB/QMA

SKU BT13911
Original price $4.39 - Original price $4.39
Original price
$4.39
$4.39 - $4.39
Current price $4.39
Air cut-off valve. This valve sits on the side of the carburettor and richens the mixture somewhat to avoid the engine running too lean.