2011 Arctic Cat 450/550/650/700/1000 ATV Service Manual, Page 173Get this manual

2011 Arctic Cat 450/550/650/700/1000 ATV Service Manual, Page 173

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7 Place the U-ring into the pump housingPosition the spring and diaphragm assembly (lip toward the carburetor) onto the carburetor; then secure the assembly with the pump housing and three screwsTight