APRILIA TUONO V4 R a-PRC ABS Service Station Manual page 488

Cooling system
•
Unscrew and remove the system drain
screw and retrieve the sealing washer.
•
Wait for the entire circuit to drain (en-
gine+pipes+radiator)
•
Refit the system drain screw complete
with a new washer.
FILLING
•
Via the filler orifice on the radiator, fill with the quantity of coolant (approx. 2.2 l - 0.48 UK
gal) necessary to reach the edge.
•
Fit the cap / valve.
•
Via the filler orifice on the expansion
tank, fill with the quantity of coolant
necessary to reach the FULL marking,
then refit the cap.
•
Start the engine, run at idle speed and
wait for the electric fans to activate (ap-
prox. 101 °C - 213 °F) then turn off the
engine and wait for it to cool.
•
With the vehicle standing vertically,
check the liquid level both in the radia-
tor and in the expansion tank and top
up if necessary.
Water pump
AFTER A TECHNICAL UPGRADE, IT IS POSSI-
BLE THAT THE TANK IS FASTENED A BIT ON
THE RIGHT OF THE WATER PUMP.
FIND BELOW THE EXPLANATION OF THE RE-
MOVAL PROCEDURE OF THE PUMP WITH
TANK.
•
Drain the coolant.
•
Remove the pipe from the radiator.
COOL SYS - 488
TUONO V4 R a-PRC ABS