Maintenance
61
por separator for a prolonged period of
time will break down and could cause
damage to the fuel line.
EMU28304
Procedure
EMU28334
Flushing in a test tank
NOTICE
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.
1.
Wash the outboard motor body using
fresh water.
NOTICE:
Do not spray wa-
ter into the air intake.
[ECM01840]
For fur-
ther information, see page 64.
2.
Disconnect the fuel line from the motor
or shut off the fuel cock, if equipped.
3.
Remove the engine top cowling and si-
lencer cover. Remove the propeller.
4.
Install the outboard motor on the test
tank. Fill the tank with fresh water to
above the level of the anti-cavitation
plate.
NOTICE:
If the fresh water level
is below the level of the anti-cavita-
tion plate, or if the water supply is in-
sufficient, engine seizure may occur.
[ECM00291]
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]
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.
8.
Remove the outboard motor from the
test tank.
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
1. Water surface
2. Lowest water level
ZMU02051
1
2
