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Yamaha 20DMHO Manual Del Propietário página 168

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EMK23211
Flushing cooling system
8 Flushing in a water tank
1) Install the outboard motor on the
water tank, and fill the tank with fresh
water to above the level of the anti-
cavitation plate.
2) Shift into neutral, start the engine,
and run at low speed for a few min-
utes.
cC
If the fresh water level is below the level
q
of the anti-cavitation plate, or if the water
supply is insufficient, engine seizure may
w
occur.
1 Water surface
2 Lowest water level
605011
8 Flushing with the water check plug (If
provided)
1) Remove the screw located beside the
"WASH" mark on the lower casing,
install the water check plug, and con-
nect it to a fresh-water tap. Cover the
cooling water inlet with a tape.
2) Check that the engine is in Neutral,
turn on the water supply through the
water check plug, start the engine and
run it at low speed for a few minutes.
cC
Do not operate the engine even momen-
tarily without running the cooling water,
for either the engine waterpump will be
damaged or the engine will overheat and
be damaged. Before starting the engine,
check that the water check plug is
installed and that the water feed is oper-
ating.
4-8
GB

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