Lubrication (Oil Injection Models) - Yamaha 150F Owner's Manual

Maintenance
or shut off the fuel cock, if equipped.
3. Remove the engine top cowling and si-
lencer cover. Remove the propeller.
4. Install the flushing attachment over the
cooling water inlet. NOTICE: Do not run
the engine without supplying it with
cooling water. Either the engine wa-
ter pump will be damaged or the en-
gine will
overheating. Before starting the en-
gine, be sure to supply water to the
cooling water passages. Avoid run-
ning the outboard motor at high
speed while on the flushing attach-
ment, otherwise overheating could
occur.
[ECM02000]
1. Flushing attachment
5. Cooling system flushing is essential to
prevent the cooling system from clog-
ging up with salt, sand, or dirt. In addi-
tion, fogging/lubricating of the engine is
mandatory to prevent excessive engine
damage due to rust. Perform the flush-
ing and fogging at the same time.
WARNING! Do not touch or remove
electrical parts when starting or dur-
ing operation. Keep hands, hair, and
clothes away from the flywheel and
other rotating parts while the engine
is running.
[EWM00091]
58
be damaged
6. Run the engine at a fast idle for a few
minutes in neutral position.
7. Just prior to turning off the engine, quick-
ly spray "Fogging Oil" alternately into
each carburetor or the fogging hole of
the silencer cover, if equipped. When
properly done, the engine will smoke ex-
cessively and almost stall.
from 8. Remove the flushing attachment.
9. Install the silencer cover/cap of fogging
hole and top cowling.
10. If the "Fogging Oil" is not available, run
the engine at a fast idle until the fuel sys-
tem becomes empty and the engine
stops.
11. Drain the cooling water completely out
of the motor. Clean the body thoroughly.
12. If the "Fogging Oil" is not available, re-
move the spark plug(s). Pour a tea-
spoonful of clean engine oil into each
cylinder. Crank several times manually.
Replace the spark plug(s).
TIP:
A flushing attachment is available from your
Yamaha dealer.
EMU28411

Lubrication (oil injection models)

1. Install the spark plug(s) and torque to
proper specification. For information on
spark plug installation, see page 65.
2. Fill the oil tanks. This prevents the for-
mation of condensation. For models with
a remote oil tank, it may be necessary to
manually override the control unit to
completely fill the engine oil tank.
3. Change the gear oil. For instructions,
see page 69. Inspect the oil for the pres-
ence of water which indicates a leaky
seal. Seal replacement should be per-
formed by an authorized Yamaha dealer
prior to use.