1998 Yamaha 25J, 30D, 25X, 30X outboards Factory Service Manual, Page 59Get this manual
CARBURETOR
E Fuel pump 1U sin scre driv er, disasse ble th fu el p2Visu ally insp ect th for cracks, and re place if re uire d3Insp ect th alv es for cracks or distortio n, and re place if re uire d4Insp ect th dia hra for sig of ma e, erforatio or stretchin g, and re place if re uire d