KTM RC 390 User Manual

15 ELECTRICAL SYSTEM 126
Warning
Environmental hazard The battery contains elements that are harmful to the environment.
– Do not dispose of batteries with the household waste. Dispose of a defective battery in an environmentally friendly manner. Give
the battery to your authorized KTM dealer or dispose of it at a collection point for used batteries.
Info
Even when there is no load on the battery, it still loses power steadily.
The charging level and the method of charging are very important for the service life of the battery.
Rapid recharging with a high charging current shortens the battery's service life.
If the charging current, charging voltage, or charging time is exceeded, electrolyte escapes through the safety valves. This reduces
the battery capacity.
If the battery is depleted from starting the vehicle repeatedly, the battery must be charged immediately.
If the battery is left in a discharged state for an extended period, it will become over-discharged and sulfate, destroying the battery.
The battery is maintenance-free, which means that the acid level does not need to be checked.
Preparatory work
– Switch off all power consumers and switch off the engine.
– Remove the front rider's seat. ( p. 81)
– Remove the battery cover. ( p. 91)
– Disconnect the negative cable of the battery to avoid damage to the onboard electron-
ics.

KTM RC 390 Specifications

General

Displacement	373.2 cc
Max Torque	37 Nm @ 7000 rpm
Transmission	6-speed
Cooling System	Liquid Cooled
Front Suspension	WP APEX 43
Rear Suspension	WP APEX Monoshock
Rear Brake	230 mm disc, single-piston floating caliper
Fuel Tank Capacity	13.7 liters
Seat Height	824 mm
Bore x Stroke	89 mm x 60 mm
Compression Ratio	12.6:1
Frame	Steel Trellis Frame, Powder Coated
Engine Type	Single-cylinder, 4-stroke
Max Power	43.5 PS @ 9000 rpm
Fuel System	Electronic Fuel Injection
Front Brake	320 mm disc, 4-piston radial caliper
ABS	Dual Channel ABS
Dry Weight	172 kg
Front Tire	110/70 R17
Rear Tire	150/60 R17
Ground Clearance	158 mm