KTM 890 DUKE R 2021 User Manual (English)

Questions and Answers:

S
Sarah MitchellAug 19, 2025
How to troubleshoot a KTM 890 DUKE R 2021 engine that won't turn over when the start button is pressed?
- J
  Joseph LeAug 19, 2025
  If your KTM Motorcycle engine does not turn when you press the start button, several issues could be the cause. You may be experiencing an operating error, so carry out the start procedure. The 12 V battery might be discharged; in this case, charge the 12-V battery and check the open-circuit current. Also, check if fuse 1, 2, or 3 is blown and change the fuses of individual electrical power consumers. It is also possible that the main fuse burned out, so change the main fuse. Finally, check the ground connection to ensure it is present.
A
Ana PowellAug 21, 2025
What causes a KTM 890 DUKE R 2021 Motorcycle engine to overheat?
- J
  John WyattAug 21, 2025
  If your KTM Motorcycle engine overheats, there are several potential causes. You might have too little coolant in the cooling system, so check the cooling system for leakage and the coolant level in the compensating tank. Very dirty radiator fins can also cause overheating, so clean the radiator fins. Foam formation in the cooling system can be another cause, so drain the coolant and then fill and bleed the cooling system. A buckled or damaged radiator hose may also be the problem, so change the radiator hose. The thermostat could be faulty, so check the thermostat. Additionally, a blown fuse 4 can cause overheating, so replace the fuses of individual electrical power consumers. Finally, a defect in the radiator fan system might be the cause, so check the radiator fan system.
K
Keith ProctorAug 25, 2025
What to do if KTM 890 DUKE R 2021 Motorcycle engine turns but doesn't start?
- T
  Tonya StricklandAug 25, 2025
  If your KTM Motorcycle engine turns but does not start, first, ensure you are not making an operating error and carry out the start procedure. A blown fuse 3 could also be the cause, so replace the fuses of individual electrical power consumers. Check if the quick release coupling is not joined and join it. A malfunction in the electronic fuel injection could be the problem, requiring you to read out the fault memory using the KTM diagnostics tool. Also, make sure you are not opening the throttle while starting; do not open the throttle when starting and carry out the start procedure.
D
Diane SmithAug 26, 2025
What to do if my KTM 890 DUKE R 2021 engine dies during the trip?
- J
  julia37Aug 26, 2025
  If the engine of your KTM Motorcycle dies during a trip, first, check if you are lacking fuel and refuel if needed. Also, a blown fuse (1, 2, or 3) could be the cause. Replace the fuses of individual electrical power consumers.
M
michael14Aug 28, 2025
Why is the malfunction indicator lamp lighting up on my KTM 890 DUKE R 2021 Motorcycle?
- W
  William BraunAug 28, 2025
  If the malfunction indicator lamp lights up or flashes on your KTM Motorcycle, it indicates a malfunction in the electronic fuel injection. To address this, read out the fault memory using the KTM diagnostics tool.
M
matthewjohnsonAug 30, 2025
Why is the ABS warning lamp on my KTM Motorcycle lighting up?
- M
  Marcus HarrisAug 30, 2025
  If the ABS warning lamp lights up on your KTM Motorcycle, it could be due to several reasons. The ABS fuse might be blown, so change the ABS fuses. There might be a large difference in wheel speeds of the front and rear wheels, in which case you should stop the vehicle, switch off the ignition, and start it again. Another possibility is a malfunction in the ABS, which requires reading out the ABS fault memory using the KTM diagnostics tool.
T
taylorashleySep 1, 2025
Why does my KTM Motorcycle engine have too little power?
- M
  Megan BrooksSep 1, 2025
  If your KTM Motorcycle engine has too little power, the air filter might be very dirty. Remove and install the air filter. Another cause could be a very dirty fuel filter, so check the fuel pressure. A malfunction in the electronic fuel injection could also be responsible and you should read out the fault memory using the KTM diagnostics tool.
J
joyschultzSep 3, 2025
What causes high oil consumption in a KTM 890 DUKE R 2021 Motorcycle?
- B
  Brandi WintersSep 3, 2025
  If you are experiencing high oil consumption in your KTM Motorcycle, the engine vent hose might be bent. Route the vent hose without bends or change it if necessary. Also, the engine oil level might be too high, so check the engine oil level. The engine oil might also be too thin (low viscosity), so change the engine oil and the oil filter, and clean the oil screens.
B
Brooke CunninghamSep 5, 2025
Why does my KTM Motorcycle engine only turn if the clutch lever is drawn?
- K
  Katherine ReynoldsSep 5, 2025
  If the engine of your KTM Motorcycle only turns when the clutch lever is drawn, it is likely because the vehicle is in gear. Shift the transmission to neutral position. It could also be that the vehicle is in gear and the side stand is folded out, so shift the transmission to neutral position.
M
morrisonjeffreySep 7, 2025
Why are the headlight and position light not working on my KTM 890 DUKE R 2021 Motorcycle?
- S
  Sara FisherSep 7, 2025
  If the headlight and position light are not functioning on your KTM Motorcycle, it is likely due to a blown fuse 6. Change the fuses of individual electrical power consumers.

KTM 890 DUKE R 2021 Specifications

General

Brand	KTM
Model	890 DUKE R 2021
Category	Motorcycle
Language	English

Summary

Safety Advice

Degrees of Risk and Symbols

Explains the different levels of risk (Danger, Warning, Caution, Note) and their associated symbols.

Safe Operation

Provides essential safety guidelines for operating the vehicle safely.

Protective Clothing

Emphasizes the necessity of wearing appropriate protective clothing for rider safety.

Work Rules

Owner's Manual

Important Notes

Manufacturer Warranty, Implied Warranty

Fuel, Auxiliary Substances

Service

Controls

Clutch Lever

Hand Brake Lever

Switches on the Left Side of the Handlebar

Light Switch

Cruise Control System Tip Switch (Optional)

Details the operation and functions of the optional cruise control system tip switch.

Ignition and Steering Lock

Opening Fuel Tank Filler Cap

Closing the Fuel Tank Filler Cap

Shift Lever

Foot Brake Lever

Combination Instrument

Warnings

Indicator Lamps

Display

Coolant Temperature Indicator

Shift Warning Light

Ergonomics

Adjusting the Handlebar Position

Adjusting the Basic Position of the Clutch Lever

Adjusting the Basic Position of the Hand Brake Lever

Adjusting the Response of the Hand Brake Lever

Adjusting the Basic Position of the Foot Brake Lever

Checking the Basic Position of the Shift Lever

Adjusting the Basic Position of the Shift Lever

Preparing for Use

Advice on Preparing for First Use

Offers crucial advice on rider fitness, protective clothing, and tire compatibility.

Running in the Engine

Loading the Vehicle

Riding Instructions

Checks and Maintenance Measures When Preparing for Use

Lists essential pre-ride checks for vehicle roadworthiness and safety.

Starting the Vehicle

Guides through the process of starting the motorcycle engine safely.

Starting Off

Launch-Control (Optional)

Describes the Launch Control function for optimal acceleration from a standstill.

Starting Off with Launch Control (Optional)

Provides warnings and usage advice for the launch control feature.

Quickshifter + (Optional)

Explains the function of the quickshifter for clutchless up and down shifts.

Shifting, Riding

Engine Traction Torque Control (MSR)

Details the MSR function for preventing rear wheel lock-up during engine braking.

Applying the Brakes

Provides critical safety information and procedures for effective braking.

Stopping, Parking

Outlines safe procedures for stopping, parking, and securing the motorcycle.

Transporting

Refueling

Contains important safety warnings and procedures for refueling the vehicle.

Service Schedule

Required Work

Lists mandatory service tasks with their frequencies based on time or mileage.

Recommended Work

Tuning the Chassis

Fork/Shock Absorber

Adjusting the Compression Damping of the Fork

Explains how hydraulic compression damping affects fork behavior and adjustment.

Adjusting the Rebound Damping of the Fork

Details how hydraulic rebound damping influences fork suspension behavior and adjustment.

Compression Damping of the Shock Absorber

Explains high-speed and low-speed compression damping for the rear suspension.

Adjusting the Low-Speed Compression Damping of the Shock Absorber

Guides on adjusting low-speed compression damping for slow to normal shock absorber movement.

Adjusting the High-Speed Compression Damping of the Shock Absorber

Details adjusting high-speed compression damping for fast shock absorber compression.

Adjusting the Rebound Damping of the Shock Absorber

Explains how to adjust the rebound damping of the shock absorber.

Adjusting the Spring Preload of the Shock Absorber

Describes how spring preload affects initial spring operation and handling balance.

Service Work on the Chassis

Raising the Motorcycle with the Rear Lifting Gear

Removing the Rear of the Motorcycle from the Lifting Gear

Lifting the Motorcycle with the Front Lifting Gear

Taking the Motorcycle off the Front Lifting Gear

Cleaning the Dust Boots of the Fork Legs

Checking the Chain for Dirt

Cleaning the Chain

Checking the Chain Tension

Explains how to check and adjust the drive chain tension.

Adjusting the Chain Tension

Details the procedure for adjusting the chain tension and wheel alignment.

Checking the Chain, Rear Sprocket, Engine Sprocket, and Chain Guide

Brake System

Anti-lock Braking System (ABS)

Explains the ABS system, its components, and warnings about modifications.

Checking the Brake Discs

Details how to check brake disc thickness and wear limits.

Checking the Front Brake Fluid Level

Provides instructions and warnings for checking the front brake fluid level.

Adding Front Brake Fluid

Guides on adding front brake fluid and safety precautions.

Checking the Front Brake Linings

Explains how to check front brake lining thickness and for wear.

Checking the Free Travel of the Foot Brake Lever

Details how to check and adjust the free travel of the foot brake lever.

Checking the Rear Brake Fluid Level

Provides instructions and warnings for checking the rear brake fluid level.

Adding Rear Brake Fluid

Guides on adding rear brake fluid and safety precautions.

Checking the Brake Linings of the Rear Brake

Explains how to check rear brake lining thickness and for wear.

Wheels, Tires

Removing the Front Wheel

Installing the Front Wheel

Removing the Rear Wheel

Installing the Rear Wheel

Checking the Rear Hub Damping Rubber Pieces

Checking the Tire Condition

Guidance on checking tire condition, tread depth, and warnings.

Checking Tire Pressure

Details how to check tire pressure and recommended values.

Using Tire Repair Spray

Electrical System

Removing the 12-V Battery

Installing the 12-V Battery

Charging the 12-V Battery

Guides on charging the 12-V battery and important notes on battery care.

Changing the Main Fuse

Changing the ABS Fuses

Changing the Fuses of Individual Electrical Power Consumers

Checking the Headlight Setting

Adjusting the Headlight Range

Cooling System

Checking the Antifreeze and Coolant Level

Provides safety warnings and procedures for checking coolant and antifreeze levels.

Checking the Coolant Level in the Compensating Tank

Draining the Coolant

Filling/Bleeding the Cooling System

Instructions for filling and bleeding the cooling system, including safety warnings.

Changing the Coolant

Tuning the Engine

Ride Mode

Explains the different Ride Modes (SPORT, STREET, RAIN, TRACK) and their effects.

Motorcycle Traction Control (MTC)

Details the MTC function, its operation, and warnings.

Slip Adjustment (Optional)

Throttle Response (Optional)

Service Work on the Engine

Checking the Engine Oil Level

Provides instructions and guidelines for checking the engine oil level.

Changing the Engine Oil and Oil Filter, Cleaning the Oil Screens

Details the procedure for changing engine oil, filter, and cleaning oil screens.

Adding Engine Oil

Guides on adding engine oil and warnings about oil quality and quantity.

Checking the Free Travel of the Clutch Lever

Explains how to check and adjust the free travel of the clutch lever.

Setting the Free Travel of the Clutch Lever

Provides instructions for adjusting the clutch lever's free travel.

Cleaning, Care

Cleaning the Motorcycle

Checks and Maintenance Steps for Winter Operation

Storage

Details the steps for preparing and storing the motorcycle for extended periods.

Preparing for Use After Storage

Troubleshooting

Engine Does Not Turn When Start Button is Pressed

Lists possible causes and actions for engine not starting.

Engine Turns Only If Clutch Lever is Drawn

Diagnoses issues where the engine only turns with the clutch lever pulled.

Engine Turns but Does Not Start

Troubleshoots common reasons for the engine not starting.

Engine Has Too Little Power

Addresses issues related to insufficient engine power.

Engine Overheats

Provides solutions for engine overheating problems.

Malfunction Indicator Lamp Lights Up or Flashes

Explains causes and actions for the malfunction indicator lamp.

N The Idling Speed Indicator Lamp Does Not Light Up

Engine Dies During the Trip

Addresses causes and solutions for the engine stalling during rides.

The ABS Warning Lamp Lights Up

Diagnoses reasons for the ABS warning lamp illuminating.

High Oil Consumption

Troubleshoots causes for high engine oil consumption.

Headlight and Position Light Are Not Functioning

Turn Signal, Brake Light, and Horn Are Not Functional

12 V Battery Discharged

Troubleshoots issues related to a discharged 12-V battery.

Combination Instrument Shows Nothing on the Display

Diagnoses why the combination instrument display might be blank.

Technical Data

Engine

Provides detailed technical specifications for the engine.

Engine Tightening Torques

Lists crucial tightening torques for various engine components.

Capacities

Chassis

Electrical System

Tires

Fork

Details specifications for the fork, including damping and spring rates.

Shock Absorber

Lists specifications for the shock absorber, including damping and spring rates.

Chassis Tightening Torques

Lists crucial tightening torques for various chassis components.

Substances

Brake Fluid DOT 4 / DOT 5.1

Coolant

Engine Oil (SAE 10W/50)

Fork Oil (SAE 4) (48601166S1)

Shock Absorber Fluid (SAE 2.5) (50180751S1)

Super Unleaded (ROZ 95)

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KTM 890 DUKE R 2021 User Manual

Table of Contents

Questions and Answers:

KTM 890 DUKE R 2021 Specifications

Summary

Safety Advice

Safety Advice

Degrees of Risk and Symbols

Safe Operation

Protective Clothing

Work Rules

Owner's Manual

Important Notes

Manufacturer Warranty, Implied Warranty

Fuel, Auxiliary Substances

Service

Controls

Clutch Lever

Hand Brake Lever

Switches on the Left Side of the Handlebar

Light Switch

Cruise Control System Tip Switch (Optional)

Ignition and Steering Lock

Opening Fuel Tank Filler Cap

Closing the Fuel Tank Filler Cap

Shift Lever

Foot Brake Lever

Combination Instrument

Combination Instrument

Warnings

Indicator Lamps

Display

Coolant Temperature Indicator

Shift Warning Light

Menu

Ergonomics

Adjusting the Handlebar Position

Adjusting the Basic Position of the Clutch Lever

Adjusting the Basic Position of the Hand Brake Lever

Adjusting the Response of the Hand Brake Lever

Adjusting the Basic Position of the Foot Brake Lever

Checking the Basic Position of the Shift Lever

Adjusting the Basic Position of the Shift Lever

Preparing for Use

Advice on Preparing for First Use

Running in the Engine

Loading the Vehicle

Riding Instructions

Checks and Maintenance Measures When Preparing for Use

Starting the Vehicle

Starting Off

Launch-Control (Optional)

Starting Off with Launch Control (Optional)

Quickshifter + (Optional)

Shifting, Riding

Engine Traction Torque Control (MSR)

Applying the Brakes

Stopping, Parking

Transporting

Refueling

Service Schedule

Required Work

Recommended Work

Tuning the Chassis

Fork/Shock Absorber

Adjusting the Compression Damping of the Fork

Adjusting the Rebound Damping of the Fork

Compression Damping of the Shock Absorber

Adjusting the Low-Speed Compression Damping of the Shock Absorber

Adjusting the High-Speed Compression Damping of the Shock Absorber

Adjusting the Rebound Damping of the Shock Absorber

Adjusting the Spring Preload of the Shock Absorber

Service Work on the Chassis

Raising the Motorcycle with the Rear Lifting Gear

Removing the Rear of the Motorcycle from the Lifting Gear

Lifting the Motorcycle with the Front Lifting Gear

Taking the Motorcycle off the Front Lifting Gear

Cleaning the Dust Boots of the Fork Legs

Checking the Chain for Dirt

Cleaning the Chain