Yamaha F15C Owner's Manual page 76

Maintenance
could cause leakage or damage.
ECM01710
CAUTION:
Change the engine oil after the first 20
hours of operation or 3 months, and ev-
ery 100 hours or at 1-year intervals there-
after. Otherwise the engine will wear
quickly.
NOTE:
Change the engine oil when the oil is still
warm.
1. Put the outboard motor in an upright po-
sition (not tilted).
2. Prepare a suitable container that holds a
larger amount than the engine oil capac-
ity. Loosen and remove the drain screw
while holding the container under the
drain hole. Then remove the oil filler cap.
Let the oil drain completely. Wipe up any
spilled oil immediately.
70
1
1. Drain screw
3. Put a new gasket on the oil drain screw.
Apply a light coat of oil to the gasket and
install the drain screw.
Drain screw tightening torque:
28.0 Nm (20.7 ft-lb) (2.86 kgf-m)
NOTE:
If a torque wrench is not available when you
are installing the drain screw, finger tighten
the screw just until the gasket comes into
contact with the surface of the drain hole.
ZMU05554
Then tighten 1/4 to 1/2 turn more. Tighten
the drain screw to the correct torque with a
torque wrench as soon as possible.
4. Add the correct amount of oil through the
filler hole. Install the filler cap.
Recommended engine oil:
4-stroke outboard motor oil
Engine oil quantity (excluding oil filter):
1.6 L (1.69 US qt) (1.41 Imp.qt)
ZMU05561