Lubrication; Cleaning And Anticorrosion Measures - Yamaha F50 Owner's Manual

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" (Part No. LUB-STRRT-12-
00) alternately into the intake silencer or
the fogging hole of the silencer cover, if
equipped. When properly done, the en-
gine 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.
EMU28401

Lubrication

1. Grease the spark plug threads and in-
stall the spark plug(s) and torque to
proper specification. For information on
spark plug installation, see page 61.
2. Change the gear oil. For instructions,
see page 68. 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 61.
EMU28421
Cleaning and anticorrosion
measures
1. Wash down the exterior of the outboard
motor with fresh water and dry off com-
pletely.
2. Spray the outboard motor exterior with
"Yamaha Silicone Protectant" (Part No.
LUB-SILCNE-13-00).
3. Wax the cowling with a non-abrasive
wax such as "Yamaha Silicone Wax"
(Part No. ACC-11000-15-02).
Maintenance
55