1998 Yamaha 25J, 30D, 25X, 30X outboards Factory Service Manual, Page 100Get this manual
ASSEMBLY AND ADJUSTMENT
Pinion gear shim 1A sse bly th shi in ith th driv sh aft and arin as sh in th illustratio nGauge block: YB-34432-16 Gauge base: YB-34432-11 Adapter plate: YB-34432-10 Clamp: YB-34432-17 Thickness gauge: YU-26900-9 NOTE: sin fo ur olts of th follo in di nsio ns, install th pter plate (Y B-3443210) th ase (Y B-34432-11)