APRILIA RS 50 Workshop Manual page 44

Periodic Maintenance Operations
RS 50
RENEWING THE COOLANT
Read through the paragraphs PRECAUTIONS AND
GENERAL INFORMATION and COOLANT.
Renew the coolant every two years.
Remove the right-hand side fairing (REMOVING THE
SIDE FAIRINGS).
Place a container with a capacity of over 1 l (2.1 gal)
2
under drain screw (1).
Unscrew and remove drain screw (1), with the related
copper washer.
1
WARNING
Never remove filler cap (2) when the engine is hot
as the coolant is very hot and pressurized.
2
Remove filler cap (2) to facilitate the outflow of the
liquid.
Allow the coolant to drain completely.
DO NOT DISPOSE OF THE COOLANT IN THE
ENVIRONMENT.
Refit drain plug (1) with a new copper washer.
Tightening torque for drain screw (1):
6 Nm (0.6 kgm) [4.4 ft-lb] 3
Top up through filler (3).
Squeeze and release sleeves (4) with a hand several
times to produce a slight pressure and allow the
coolant to flow in the pipes.
Top up again.
IMPORTANT
The level is correct when the coolant
stabilizes immediately under filler (3).
Replace filler cap (2).
Start the engine and let it idle for a few minutes, then
allow it to cool down and check the coolant level
again.
If necessary top up (CHECKING AND TOPPING UP).
Total coolant capacity: 0.9 l (1.9 gals)
IMPORTANT
The cooling system of this vehicle
requires no air bleeding.
For further information refer to the chapter COOLING
SYSTEM.
2-21
chap. 2
Release 00 2000-11