35/Water Pump, Cooling System; Draining The Coolant; Refilling Coolant - KTM 50 SX Repair Manual

35/WATER PUMP, COOLING SYSTEM

Draining the coolant

20.1
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.
–
Avoid contact between coolant and skin, eyes and clothing. If it gets into your eyes, rinse immediately with water and con-
tact a doctor. Wash affected skin areas immediately with soap and water. If coolant is swallowed, contact a doctor immedi-
ately. Change clothes that have come into contact with coolants. Keep coolant out of the reach of children.
Info
Carry out this work with a cold engine.

Refilling coolant

20.2
Warning
Danger of poisoning Coolant is poisonous and a health hazard.
–
Avoid contact between coolant and skin, eyes and clothing. If it gets into your eyes, rinse immediately with water and con-
tact a doctor. Wash affected skin areas immediately with soap and water. If coolant is swallowed, contact a doctor immedi-
ately. Change clothes that have come into contact with coolants. Keep coolant out of the reach of children.
–
Stand the motorcycle upright.
–
Place a suitable container under the engine.
–
Remove screw
–
Completely drain the coolant.
–
Mount screw
Guideline
Screw, water pump cover
300617-10
–
Make sure that the screw
–
Stand the vehicle upright.
–
Add coolant to level
Guideline
Level above the radiator fins

Coolant
700511-01
–
Position the vehicle as shown and secure it against rolling away. A height differ-
ence of must be reached.

Guideline
Height difference
Info
To ensure that all of the air can escape from the cooling system, the front of
0 0 A 0 0 B
the vehicle must be jacked up. A poorly bled cooling system is less effective
at cooling and may result in overheating of the engine.
400677-11
–
Place the vehicle back on a level surface.
–
Add coolant to level
–
Mount the radiator cap.
. Remove the radiator cap.

with a new seal ring and tighten it.

is tightened.

.

0.5 l (0.5 qt.)

.

M6 10 Nm (7.4 lbf ft)
10 mm (0.39 in)
Coolant ( p. 142)
Coolant (mixed ready to use)
( p. 142)
100 cm (39.4 in)
114