APRILIA RS 50 Workshop Manual page 50

Routine maintenance operations
CHANGING THE COOLANT
Read carefully (PRECAUTIONS AND GENERAL
INFORMATION) and (COOLANT).
Change the coolant every two years.
Remove the right-hand side fairing (REMOVING THE
SIDE FAIRINGS).
Place a container under the drain plug (1) to collect
the fluid (capacity greater than 1 l / 0.26 gal).
Unscrew and remove the drain plug (1) and take off
the copper washer.
WARNING
Do not remove the filler cap (2) when the engine is
hot, as the coolant is under pressure and at a high
temperature.
Remove the filler cap (2) to allow the fluid to flow out
more quickly (2).
Wait until the coolant has all drained out.
DO NOT DISPOSE OF THE FLUID IN DRAINS,
WATER COURSES OR THE SOIL.
Replace the drain plug (1), using a new copper washer.
Drain plug (1) torque setting:
6 Nm (0.6 Kgm) [4.4 Ft-lb].
Fill the filler hole (3) right to the brim.
Squeeze and release the hoses (4) several times by
hand to create a slight pressure to allow the fluid to
flow into the tubing.
Top up again.
NOTE
The fluid is at the right level when it settles
just below the brim of the filler hole (3).
Screw on the filler cap (2).
Start the engine and run it for a few minutes, allow it
to cool down and then recheck-the fluid level.
Top up if necessary (CHECKING AND TOPPING UP).
Total quantity: 0.9 l (0.24 gal)
NOTE
There is no need to bleed the air from the
system on this motorcycle.
For further information see COOLING SYSTEM.
ch. 2
2
3
Release 00 2001-03
RS 50
1
2-21
2