Yamaha Marine Outboards F4A/F4 Factory Service Manual, Page 192Get this manual

Yamaha Marine Outboards F4A/F4 Factory Service Manual, Page 192

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CRANKCASE, CRANKSHAFT AND CAMSHAFT

Turn the bearing by fingers and check the bearing pitching

Oil seal housing inspection 1 Inspect: 9 Oil seal housing CrackDamage Replace