Cooling System; Checking Antifreeze And Coolant Level - KTM Supermoto 690 Owner's Manual

MAINTENANCE WORK ON CHASSIS AND ENGINE

Cooling system

Checking antifreeze and coolant level

Warning
Danger of scalding The coolant gets very hot when the motorcycle is driven and is under high pressure.
Do not open the radiator, radiator hoses or other cooling system components when the engine is hot. Allow the engine and cool-
ing system to cool down. If you scald yourself, hold the affected area under cold water immediately.
The water pump
The pressure resulting from the warming of the cooling system is regulated by a valve in
the radiator cap
tank . If the temperature falls, the excess coolant is sucked back into the cooling system.
The specified coolant temperature is therefore permissible without danger of function prob-
lems.
125 °C (257 °F)
100166-10
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 forces the coolant to flow.
. Heat expansion causes excess coolant to flow into the compensating
106
, which is controlled by a ther-