1996-2006 Yamaha 115-140HP Outboards Service Manuals, Page 345Get this manual
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IBRKT Ii[ I-UPPER CASING 5 Install: -Nut CDRubber cap -NutGround lead G) -SpringMount cover -Screw (])
Installation nut (upper): 53 Nm (5.3 m-kg, 38 ft-lb) Installation nut (lower): 73 Nm (7.3 m