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use and maintenance RS 50
COOLANT
CAUTION
Do not use the vehicle if the coolant is
below the minimum prescribed level.
Check the coolant level every 2000 km
(1250 mi) and after long rides; change it
every 24 months.
WARNING
The coolant is noxious: do not swallow
it; if the coolant gets in contact with the
skin or the eyes, it can cause serious ir-
ritations.
If the coolant gets in contact with your
skin or eyes, rinse with plenty of water
and consult a doctor. If it is swallowed,
induce vomit, rinse mouth and throat
with plenty of water and consult a doc-
tor without delay.
DO NOT DISPOSE OF THE BRAKE FLU-
ID IN THE ENVIRONMENT.
KEEP AWAY FROM CHILDREN.
Be careful not to spill the coolant on the
red-hot parts of the engine: it may catch
fire and send out invisible flames.
In case maintenance operations are to
be performed, it is advisable to use la-
tex gloves.
Have the coolant changed by an aprilia
Official Dealer.
The coolant is made up of 50% water and
50% antifreeze.
This mixture is ideal for most running tem-
peratures and ensures good protection
against corrosion.
It is advisable to keep the same mixture
also in the hot season, since in this way
losses due to evaporation are reduced and
it is not necessary to top up very frequent-
ly.
The mineral salt deposits left in the radiator
by evaporated water are thus reduced and
the efficiency of the cooling system re-
mains unchanged.
If the outdoor temperature is below 0°,
check the cooling circuit frequently and if
necessary increase the antifreeze concen-
tration (up to maximum 60%).
For the cooling solution use distilled water,
in order not to damage the engine.
WARNING
Do not remove the filling plug (1) when
the engine is hot, since the coolant is
under pressure and its temperature is
high.
CHECKING AND TOPPING UP
WARNING
Check the coolant level and top up the
expansion tank with cold engine.
◆
Stop the engine and wait until it has
cooled down.
NOTE Position the vehicle on firm and
flat ground.
WARNING
Danger of fall or overturning.
When the vehicle is straightened from
the parking position to the driving posi-
tion, the stand goes automatically up.
◆
Keep the vehicle in vertical position, with
the two wheels resting on the ground.
◆
Loosen the filling plug (1) (by giving it
two anticlockwise turns), without remov-
ing it.
◆
Wait a few seconds in order to release
any residual pressure.
NOTE A breather pipe (2) is connected
to the plug (1). Neither force, nor discon-
nect the breather pipe (2).
◆
Unscrew and remove the plug (1).
WARNING
The coolant is noxious: do not swallow
it; if the coolant gets in contact with the
skin or the eyes, it can cause serious ir-
ritations.
Do not use your fingers or any other ob-
ject to check if there is enough coolant.
◆
The seat of the plug (1) is characterized
by a diameter reduction (3): visually
check if the coolant reaches this reduc-
tion point.
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