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Checking The Coolant Level; Bleeding The Cooling System - KTM 1998 125sx Owner's Manual

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1
10 mm
when engine is cold
2
3
4
A mixture of 40 % antifreeze liquid and 60 % water is used as coolant. However,
the anti-freeze protection must be at least for –25° C (–13° F). This mixture offers
antifreeze protection but also good corrosion protection and should therefore not
be replaced by pure water.
!
F
OR THE COOLING SYSTEM
U
SING LOWERGRADE ANTIFREEZE AGENTS CAN CAUSE CORROSION AND COOLANT FOAMING
Pressure induced by heating of the coolant in the system is controlled by a valve in
1
the radiator cap
; a water temperature of up to 120° C (248° F) is admissible
therefore, having to expect any trouble.

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.
I
,
F POSSIBLE
ALWAYS CHECK LEVEL OF COOLING LIQUID WHEN ENGINE IS COLD
TO OPEN THE RADIATOR CAP WHEN THE ENGINE IS HOT
OPEN SLOWLY TO RELEASE PRESSURE
!
T
HE COOLING SYSTEM MUST BE BLED AFTER DRAINING THE COOLING LIQUID OR AFTER
0.25
ADDING MORE THAN

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
– Pour approx. 0.5 litres (0.13 US gallons) coolant into the system.
2
3
– Remove screw
emerges free of air bubbles (only for 125/200 engines).
– Remove the screw
approx. 30 degree angle.
– 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.
– Return the motorcycle to its original position and 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.
CAUTION
,
-
USE ONLY HIGH
GRADE ANTIFREEZE
WARNING
,
USE A RAG TO COVER THE CAP AND
.
CAUTION
(0.06 US
)
L
GALLONS
COOLING LIQUID
2
is fastened.
at the cylinder head. Reinstall it as soon as the cooling liquid
4
on the right radiator and tilt the motorcycle to the right
!
(Shell Advance Coolant).
.
. I
F YOU HAVE
!
.
21

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