Lubrication - Yamaha F50 Owner's Manual

it with cooling water. Either the engine
water pump will be damaged or the en-
gine will be damaged from overheating.
Before starting the engine, be sure to
supply water to the cooling water passag-
es.
ECM00310
CAUTION:
Avoid running the outboard motor at high
speed while on the flushing attachment,
otherwise overheating could occur.
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.
EWM00090
WARNING
Do not touch or remove electrical parts
G
when starting or during operation.
Keep hands, hair, and clothes away
G
from the flywheel and other rotating
parts while the engine is running.
NOTE:
When using the flushing attachment,
G
maintain adequate water pressure and a
steady water flow.
If the overheat warning device is activated,
G
turn the engine off, and consult your
Yamaha dealer.
6. Run the engine at a fast idle for a few
minutes in neutral position while supply-
ing fresh water.
7. Just prior to turning off the engine, quick-
ly spray "Yamaha Stor-Rite Engine
Fogging Oil" alternately into the intake
silencer or the fogging hole of the silenc-
er cover, if equipped. When properly
done, the engine will smoke excessively
and almost stall.
8. Remove the flushing attachment and
wipe off any excess water.
9. Install the top cowling and propeller.
10. Drain the cooling water completely out
of the motor. Clean the body thoroughly.
NOTE:
A flushing attachment is available from your
Yamaha dealer.
EMU28402

Lubrication

1. Install the spark plug(s) and torque to
proper specification. For information on
spark plug installation, see page 70.
2. Change the gear oil. For instructions,
see page 76. Inspect the oil for the pres-
ence of water that indicates a leaky seal.
Seal replacement should be performed
by an authorized Yamaha dealer prior to
use.
3. Grease all grease fittings. For further de-
tails, see page 70.
NOTE:
For long-term storage, fogging the engine
with oil is recommended. Contact your
Yamaha dealer for information about fogging
oil and procedures for your engine.
Maintenance
63