KTM 390 DUKE 2021 User Manual

SERVICE WORK ON THE ENGINE 18
213
18.3 Adding engine oil
Info
Too little engine oil or poor-quality engine oil will result in premature wear of the engine.
401955-10
Main work
–
Remove filler plug
1
with the O-ring, and fill up with engine
oil.
Engine oil (SAE 15W/50) ( p. 246)
Info
In order to achieve optimal engine oil performance, it is
not advisable to mix different engine oils.
KTM recommends changing the engine oil.
– Mount and tighten the filler plug together with the O-ring.
Danger
Danger of poisoning Exhaust gases are toxic and inhal-
ing them may result in unconsciousness and death.
– Always make sure there is sufficient ventilation
when running the engine.
– Use effective exhaust extraction when starting or
running the engine in an enclosed space.
– Start the engine and check for leaks.

KTM 390 DUKE 2021 Specifications

General

Displacement	373.2 cc
Bore x Stroke	89 mm x 60 mm
Compression Ratio	12.6:1
Torque	37 Nm @ 7, 000 rpm
Transmission	6-speed
Cooling System	Liquid cooled
Frame	Steel trellis frame, powder coated
Rear Suspension	WP APEX Monoshock
Front Tire	110/70 ZR17
Rear Tire	150/60 ZR17
Wheelbase	1, 357 mm
Seat Height	830 mm
Ground Clearance	185 mm
Dry Weight	149 kg
Instrumentation	TFT display
Headlight	LED
Tail Light	LED
Power	32 kW (44 hp) @ 9, 000 rpm
Fuel System	Electronic Fuel Injection
Front Suspension	WP Apex 43 mm
Rear Brake	Single-piston floating caliper, brake disc
ABS	Bosch 9.1MP Two Channel ABS (Supermoto ABS)
Fuel Tank Capacity	13.4 l
Engine Type	Single-cylinder, 4-stroke, liquid-cooled
Front Brake	Four-piston radial fixed caliper, brake disc