15 COOLING SYSTEM 80
15.1 Cooling system
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(All 125/150 models)
Water pump 1 in the engine circulates the coolant.
The pressure resulting from the warming of the cooling system is regulated by a
valve in radiator cap 2. This ensures that operating the vehicle at the specified
coolant temperature will not result in a risk of malfunctions.
120 °C (248 °F)
Cooling is effected by the air stream.
The lower the speed, the less the cooling effect. Dirty cooling fins also reduce the
cooling effect.
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(All 250/300 models)
Water pump 1 in the engine circulates the coolant.
The pressure resulting from the warming of the cooling system is regulated by a
valve in radiator cap 2. This ensures that operating the vehicle at the specified
coolant temperature will not result in a risk of malfunctions.
120 °C (248 °F)
Cooling is effected by the air stream.
The lower the speed, the less the cooling effect. Dirty cooling fins also reduce the
cooling effect.
15.2 Radiator cover (All SX models)
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The radiator cover is mounted in front of the left radiator between the radiator shield
and radiator.
The radiator cover keeps the coolant temperature in the correct range.
Coolant temperature 65… 70 °C (149… 158 °F)
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The radiator cover is installed in front of the left radiator, depending on the ambient
temperature.
Radiator cover 1 without
notch
< 7 °C (< 45 °F)
Radiator cover 2 with
notch
7… 16 °C (45… 61 °F)
Without radiator cover > 16 °C (> 61 °F)
Info
Do not use both radiator covers at the same time.
15.3 Removing the radiator cover (All SX models)
Preparatory work
– Remove the seat. ( p. 49)
–
Remove the fuel tank. x ( p. 53)
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Main work
– Detach radiator shield 1 at mounting points 2 and remove it. Remove radiator
cover 3.
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