KTM 125 SX User Manual

15 COOLING SYSTEM 94
400243-10
– Stand the motorcycle upright on a horizontal surface.
– Remove the radiator cap.
– Check the coolant antifreeze.
−25… −45 °C (−13… −49 °F)
» If the antifreeze in the coolant does not match the specified value:
– Correct the coolant antifreeze.
– Check the coolant level in the radiator.
Coolant level

above the radiator
fins
10 mm (0.39 in)
» If the coolant level does not match the specified value:
– Correct the coolant level.
Coolant ( p. 134)
– Mount the radiator cap.
15.6 Checking the coolant level
Warning
Danger of scalding During motorcycle operation, the coolant gets very hot and is under pressure.
– Do not remove the radiator cap, radiator hoses or other cooling system components when the engine is hot. Allow the
engine and cooling system to cool down. In case of scalding, rinse immediately with lukewarm water.
Warning
Danger of poisoning Coolant is poisonous and a health hazard.
– Coolant must not come into contact with the skin, eyes, or clothing. If contact occurs with the eyes, rinse with water imme-
diately and contact a physician. Immediately clean contaminated areas on the skin with soap and water. If fuel is swal-
lowed, contact a physician immediately. Change clothing that is contaminated with coolant. Keep coolant out of reach of
children.
Condition
The engine is cold.
400243-10
– Stand the motorcycle upright on a horizontal surface.
– Remove the radiator cap.
– Check the coolant level in the radiator.
Coolant level

above the radiator
fins
10 mm (0.39 in)
» If the coolant level does not match the specified value:
– Correct the coolant level.
Coolant ( p. 134)
– Mount the radiator cap.
15.7 Draining the coolant
Warning
Danger of scalding During motorcycle operation, the coolant gets very hot and is under pressure.
– Do not remove the radiator cap, radiator hoses or other cooling system components when the engine is hot. Allow the
engine and cooling system to cool down. In case of scalding, rinse immediately with lukewarm water.
Warning
Danger of poisoning Coolant is poisonous and a health hazard.
– Coolant must not come into contact with the skin, eyes, or clothing. If contact occurs with the eyes, rinse with water imme-
diately and contact a physician. Immediately clean contaminated areas on the skin with soap and water. If fuel is swal-
lowed, contact a physician immediately. Change clothing that is contaminated with coolant. Keep coolant out of reach of
children.
Condition
The engine is cold.

KTM 125 SX Specifications

General

Brand	KTM
Model	125 SX
Category	Motorcycle
Language	English