1996-2006 Yamaha 115-140HP Outboards Service Manuals, Page 459Get this manual

1996-2006 Yamaha 115-140HP Outboards Service Manuals, Page 459

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CYLINDER, PISTON AND CRANKSHAFT

All the remammg gasket should be removed from the components and clean them
Do not scratch on the components such as combustion chamber, exhaust mani