1998 Yamaha 25J, 30D, 25X, 30X outboards Factory Service Manual, Page 68Get this manual
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DISASSEMBLY
2 Intake nifold
3E ust co er and th er ostat co er 4O il se al usin Re th oil se al fro usin g
5 Cra nkcase Re th el pin6 Cra nksh aft
7 Pisto 8 Pisto