1998 Yamaha 25J, 30D, 25X, 30X outboards Factory Service Manual, Page 55Get this manual
FUEL SYSTEM
E 4U sin soft brush and solv nt, cle th filter-cu th oro hlyInsp ect th filter-cu for cracks or thre e, and re place if re uire d5Place th O-rin th filter y, install th ele nt, and scre in th filter cu p
Fuel joints 1Insp ect th fu el joints for le aks and cracks, and re place if re uire d