Yamaha 115-225 HP Outboards Service Manual, Page 9Get this manual
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SAFETY WHILE WORKING
DISASSEMBLY AND ASSEMBLY
Clean parts with compressed-air on disassembling themOil the contact surfaces of moving parts on assemblyAfter assembly, check that moving parts operate normallyInstall bearings with the manufacturer's markings on the side exposed to view, and liberally oil the bearings5When installing oil seals, apply light coating of water-resistant grease to the outside diameter