KTM 125SX - Radiator Cover for the Cold Season; Checking the Coolant Level; Refilling;Bleeding the Cooling System

ENGLISH
27
Radiator cover for the cold season
To ensure that the engine reaches its operative temperature also at low
temperatures, the radiator cover
1 must be mounted.
For this purpose, detach the left radiator protection
2 and mount the cover
in front of the left radiator as illustrated.
Remount the radiator protection.
NOTE: The radiator shutter can be obtained
from your KTM dealer
Checking the coolant level
The coolant should be 10 mm (0.4 in) above the radiator fins when the
engine is cold (cf. diagram). In the event of the coolant being drained,
always fill and bleed the system.

WARNING

IF POSSIBLE, ALWAYS CHECK LEVEL OF COOLING LIQUID WHEN ENGINE IS COLD. IFYOU
HAVE TO OPEN THE RADIATOR CAP WHEN THE ENGINE IS HOT
, USE A RAG TO COVER THE
CAP AND OPEN SLOWLY TO RELEASE PRESSURE
.
!
CAUTION
!
T
HE COOLING SYSTEM MUST BE BLED AFTER DRAINING THE COOLING LIQUID OR AFTER
ADDING MORE THAN
0.25 L (0.06 US GALLONS) COOLING LIQUID.
Refilling/Bleeding the cooling system
The cooling system must be bled as described below after draining of the
cooling liquid or after adding more than 0.25 l (0.06 US gallons) cooling
liquid.
– Make sure that the drain screw
3 is fastened.
– Pour approx. 0.5 litres (0.13 US gallons) coolant into the system.
– Remove screw
4 at the cylinder head. Reinstall it as soon as the cooling
liquid emerges free of air bubbles (only for 125/200 engines).
– Remove the screw
5 on the right radiator.
– Now add cooling liquid until it emerges free of bubbles at the right
radiator. Then immediately mount the screw so that no more air can
enter the right radiator.
– Top up the left radiator until the coolant can be seen approx. 10 mm
(0.4 in) above the radiator fins.
– Check the coolant level again after a short ride.
when engine is cold
10 mm
3
3
4
2
1
1
2
5