Cooling System; Checking The Antifreeze And Coolant Level - KTM 2016 690 DUKE Owner's Manual

16

COOLING SYSTEM

16.1 Cooling system
16.2

Checking the antifreeze and 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.

Water pump
The pressure resulting from the warming of the cooling system is regulated by a valve in

radiator cap
When the temperature falls, this surplus coolant is sucked back into the cooling system.
This ensures that operating the vehicle at the specified coolant temperature will not result
in a risk of malfunctions.
115 °C (239 °F)
K00436-10
The coolant is cooled by the air stream and a radiator fan
moswitch.
The lower the speed, the less the cooling effect. Dirty cooling fins also reduce the cooling
effect.
100167-10
in the engine ensures forced circulation of the coolant.
. Heat expansion causes excess coolant to flow into compensating tank

, which is controlled by a ther-
137

.