Mercury 8/9.9 BigFoot, Manual, Page: 119 / 153

MAINTENANCE
eng
107
a. Cracks in the back of the belt or in the base of the belt
teeth.
b. Excessive wear at the roots of the cogs.
c. Rubber portion swollen by oil.
d. Belt surfaces roughened.
e. Signs of wear on edges or outer surfaces of belt.
27578
Changing Engine Oil
ENGINE OIL CAPACITY
Engine oil capacity is approximately 800 ml (27 fl. oz.).
OIL CHANGING PROCEDURE
1. Lock the outboard in the full tilt up position.
2. Position outboard so the drain hole is facing downward.
3. Remove drain plug and drain engine oil into an appropriate
container.
IMPORTANT: Do not use a crankcase oil pump when changing
the oil or engine damage may occur.
4. After the initial oil has been drained, temporarily reinstall the
drain plug. Disengage the tilt lock and lower the outboard.
Wait a minute to allow the remaining oil that was trapped in
the engine to return to the drain. Return outboard to the full
tilt position and drain the remaining oil.