Yamaha Outboards 3P Service Manual, Page 61Get this manual
ILOWRI -t ASSEMBLY AND ADJUSTMENT 1 65000-0
LOWER UNIT LEAKAGE CHECK 1) Tighten the gear oil-drain screw, and connect the tester to the oil-level hole2) Pump the tester, and apply pressure of 1.0 kgfsq.cm (1.020 bar) 3) Check that the pressure is held at 1.0 kgfsq .cm (1.020 bar) for 10 secondsNOTE: _
If the pressure fails, the leakage from lower unit is unacceptable, requiring re-inspection of its component parts
1 70001-0
INSTALLATION
1) Grease the spline of the drive-shaft and the water-tube outer face, align the water-tube and drive-shaft, install the lower unit and tighten the bolts to the specified torqueInstallation bolts, specified torque: