1998 Yamaha 25J, 30D, 25X, 30X outboards Factory Service Manual, Page 78Get this manual
POWR ASSEMBLY AND ADJUSTMENT
5M atch th cra nk case and tig hte th olts in se nce and in ste ps of torq Tig hte nin se nce
1st step: M8: 15 Nm (1.5 kgf, 11 ft lb) M6: Nm (0.5 kgf, 3.6 ft lb) 2nd step: M8: 28 Nm (2.8 kgf, 20 ft lb) M6: 11 Nm (1.1 kgf, 8.0 ft lb) th cra nksh aft turns
6C eck th at othly
G 75004-0
CYLINDER HEAD AND EXHAUST COVER
1Install th askets, cylin er-h co er and ust co er