KTM 390 Duke Series 2019 User Manual

COOLING SYSTEM 16
185
16.1 Cooling system
F00854-10
Water pump
1
in the engine ensures forced circulation of the
coolant.
The pressure resulting from the warming of the cooling system is
regulated by a valve in radiator cap
2
. Heat expansion causes
excess coolant to flow into compensating tank
3
. When the tem-
perature 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.
110 °C (230 °F)

KTM 390 Duke Series 2019 Specifications

General

Displacement	373.2 cc
Bore x Stroke	89 mm x 60 mm
Torque	37 Nm @ 7, 000 rpm
Compression Ratio	12.6:1
Transmission	6-speed
Frame	Steel trellis frame, powder coated
Front Suspension	WP upside-down Ø 43 mm
Rear Suspension	WP monoshock
Front Tire	110/70 R17
Rear Tire	150/60 R17
Wheelbase	1, 357 mm
Seat Height	830 mm
Ground Clearance	170 mm
Fuel Tank Capacity	13.4 liters
Dry Weight	149 kg
Power	32 kW (43.5 hp) @ 9, 000 rpm
Fuel System	Electronic fuel injection (EFI)
Front Brake	320 mm disc brake
Rear Brake	230 mm disc brake
ABS	Bosch 9.1MB two-channel ABS
Engine Type	Single-cylinder, 4-stroke, liquid-cooled
Clutch	Wet multi-disc clutch, mechanically operated