Why does my KTM 390 DUKE 2021 Motorcycle engine have too little power?
If your KTM Motorcycle engine has too little power, the possible causes are: * A very dirty air filter; change the air filter. * A very dirty fuel filter; check the fuel pressure. * A malfunction in the electronic fuel injection; read out the fault memory using the KTM diagnostics tool.
What to do if my KTM Motorcycle engine overheats?
If your KTM Motorcycle engine overheats, consider these potential causes: * There may be too little coolant in the cooling system; check the cooling system for leakage and check the coolant level. * The radiator fins could be very dirty; clean the radiator fins. * There could be foam formation in the cooling system; drain the coolant and then fill/bleed the cooling system.
Why is my KTM 390 DUKE 2021 Motorcycle engine overheating?
If your KTM Motorcycle engine is overheating, it could be due to: * A defective thermostat; check the thermostat. * Fuse 5 being blown; change the fuses of individual power consumers. * A defect in the radiator fan system; check the radiator fan system.
Why is my KTM 390 DUKE 2021 experiencing high oil consumption?
If your KTM Motorcycle has high oil consumption, the reasons may be: * A bent engine vent hose; route the vent hose without bends or change it if necessary. * Engine oil level too high; check the engine oil level. * Engine oil too thin (low viscosity); change the engine oil and the oil filter, and clean the oil screens.
Why KTM Motorcycle engine won't turn over when start button is pressed?
If your KTM Motorcycle engine doesn't turn over when you press the start button, there could be several reasons: * You may not be following the correct start procedure. * The 12-V battery might be discharged, so charge it. * A fuse (1, 3, 4, or 7) could be blown, so replace the blown fuses. * There might be no ground connection, so check the ground connection.
Why is the ABS warning lamp lighting up on my KTM Motorcycle?
If the ABS warning lamp lights up on your KTM Motorcycle, the reasons may be: * The ABS fuse might be blown; change the ABS fuses. * There could be a large difference in wheel speeds of the front and rear wheels; stop the vehicle, switch off the ignition, and start it again. * There may be a malfunction in the ABS; read out the fault memory using the KTM diagnostics tool.
What to do if KTM 390 DUKE 2021 engine turns but does not start?
If the KTM Motorcycle engine turns but does not start, possible causes include: * Operating error; carry out the start procedure. * Malfunction in the electronic fuel injection; read out the fault memory using the KTM diagnostics tool.
What to do if KTM Motorcycle engine dies during the trip?
If your KTM Motorcycle engine dies during the trip, the potential causes are: * Lack of fuel; refuel. * A blown fuse (1, 3, 4, or 7); change the fuses of individual power consumers.
What does it mean when the malfunction indicator lamp lights up yellow on my KTM 390 DUKE 2021?
If the malfunction indicator lamp lights up yellow on your KTM Motorcycle, this may indicate a malfunction in the electronic fuel injection. In this case, read out the fault memory using the KTM diagnostics tool.
How to fix a discharged 12V battery on my KTM Motorcycle?
If the 12 V battery is discharged on your KTM Motorcycle, it could be due to: * The ignition was not switched off when the vehicle was parked; charge the 12-V battery. * The 12-V battery is not being charged by the alternator; check the charging voltage and the open-circuit current.
Provides definitions for intended use, misuse, and general safety instructions.
Defines different degrees of risk and associated symbols for hazard identification.
Details tampering warnings, safe operation practices, and accident prevention.
Describes clutch lever, hand brake lever, throttle grip, and handlebar switches.
Provides essential advice for preparing the motorcycle for its initial use.
Guides on engine running-in procedures and vehicle loading.
Details essential checks and maintenance before every ride.
Covers procedures for starting the engine and moving the motorcycle.
Provides guidance on shifting gears, braking, and general riding practices.
Explains how to apply brakes, stopping distances, and safety during braking.
Lists essential maintenance tasks and their intervals.
Explains how to adjust the spring preload on the shock absorber for optimal performance.
Guides on how to adjust the position and angle of the shift lever.
Explains clutch lever play adjustment and front spoiler removal/fitting.
Explains the ABS function, operation, and warnings.
Provides step-by-step instructions for removing and installing front and rear wheels.
Provides procedures for draining, filling, and bleeding the cooling system.
Details how to check and adjust the free play in the clutch lever.
Covers checking engine oil level, changing oil, filter, and cleaning screens.
Lists common faults, their possible causes, and recommended actions.
Covers issues with lamps, battery, ABS, speedometer, and other systems.
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 |
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