1998 Yamaha 25J, 30D, 25X, 30X outboards Factory Service Manual, Page 95Get this manual
INSPECTION
156000-0
DRIVE SHAFT AND PROPELLER SHAFT
1Visu ally insp ect th sh afts, lo okin for gro ar th surface in co ntact ith th arin gs and oil-se als, and lo okin for ar th splin esRe place if orn or d
156300-0
DRIVE SHAFT SLEEVE