Yamaha F50A Service Manual page 93

4. Place a drain pan under the drain screw
3, remove the drain screw, then the
check screw 4 to drain the oil.
5. Check the oil for metal, discoloration, and
viscosity. Check the internal parts of the
lower case if necessary.
6. Insert the gear oil tube or gear oil pump
into the drain hole and slowly fill the gear
oil until oil flows out of the check hole and
no air bubbles are visible.
62Y3A11
Power trim and tilt unit / Lower unit
Recommended gear oil:
GEAR CASE LUBE (USA) or Hypoid
gear oil
SAE: 90
Oil quantity:
F50/F50A:
0.43 L (0.45 US qt, 0.38 Imp qt)
T50/FT50B, FT50C:
0.61 L (0.64 US qt, 0.54 Imp qt)
7. Install the check screw, quickly install the
drain screw, and then tighten them to the
specified torque.
Check and drain screw:
7 N·m (0.7 kgf·m, 5.1 ft·lb)
1
2
3
4
5
6
7
8
I
3-18