THESE DIAPHRAGMS ARE OIL AND FUEL RESISTANT INCLUDING THE NEW E10 FUEL. New Carburettor Diaphragm Slide Membrane Fits Mikuni BS34CV MARK 2 CARBS motorcycle parts most models please check the measurements below. diaphragm measures 72mm outside diameter the slide outside diameter is 29mm and the slide length up to the white washer is 47mm YOU GET 1 DIAPHRAGM AND SLIDE LIKE IN THE PICTURE ABOVE VERY GOOD QUALITY AFTER MARKET REPLACEMENT PARTS.
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