1998 Yamaha 25J, 30D, 25X, 30X outboards Factory Service Manual, Page 98Get this manual
ASSEMBLY AND ADJUSTMENT
5Place th for ard-g ar shi m-p ack in ositio n, and install th for ard-g ar uter race th shi m-p ackDriver rod: YB-6071 90890-066051 Bearing outer race attachment: YB-6085 90890-066272 6Place th for ard-g ar co plete to th uter race