Maintenance
59
water may enter the cylinder through
the exhaust port and cause engine trou-
ble.
●
Store the outboard motor in a dry, well-
ventilated place, not in direct sunlight.
●
Drain the remaining gasoline from the
vapor separator. Gasoline left in the va-
por separator for a prolonged period of
time will break down and could cause
damage to the fuel line.
EMU28303
Procedure
EMU29953
Flushing with the flushing attachment
1.
Wash the outboard motor body using
fresh water. For further information, see
page 62.
2.
Disconnect the fuel line from the motor
or shut off the fuel cock, if equipped.
3.
Remove the top cowling and propeller.
4.
Install the flushing attachment over the
cooling water inlet.
CAUTION:
ECM00300
Do not run the engine without supplying
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.
CAUTION:
ECM00310
Avoid running the outboard motor at high
speed while on the flushing attachment,
otherwise overheating could occur.
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 the engine is
mandatory to prevent excessive engine
damage due to rust. Perform the flush-
ing and fogging at the same time.
WARNING
EWM00090
●
Do not touch or remove electrical parts
when starting or during operation.
●
Keep hands, hair, and clothes away
from the flywheel and other rotating
parts while the engine is running.
NOTE:
●
When using the flushing attachment,
maintain adequate water pressure and a
steady water flow.
●
If the overheat warning device is activated,
turn the engine off, and consult your
Yamaha dealer.
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 the
intake silencer or the fogging hole of the
silencer cover, if equipped. When prop-
erly done, the engine will smoke exces-
1. Flushing attachment
