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OWNER'S MANUAL
2021
390 DUKE
Art. no. 3214321en

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Summarization of Contents

Welcome and Important Information
Vehicle Identification
Details locations for Vehicle Identification Number, Engine Number, and Key Number.
Manual Conventions
Symbols Used
Explains the meaning of various symbols used throughout the manual.
Formats Used
Explains the meaning of typographical formats used in the document.
Safety Advice
General Safety Guidelines
Covers use, misuse, risk levels, and general safety instructions.
Operational Safety
Addresses tampering warnings and essential guidelines for safe operation.
Protective Clothing & Work Rules
Covers safety guidelines for protective clothing and general work rules.
Environmental & Manual Information
Provides information on environmental responsibility and the owner's manual.
Important Notes
Warranty and Service Information
Provides information on manufacturer warranty and general service guidelines.
Fuel, Parts, and Customer Service
Covers fuel, spare parts, technical accessories, and customer service.
Vehicle Identification
Front View Overview
Identifies key components of the motorcycle from the front left view.
Rear View Overview
Identifies key components of the motorcycle from the rear right view.
Serial Numbers
VIN, Engine Number, and Type Label
Details locations for Vehicle Identification Number, Engine Number, and Type Label.
Key Number Location
Provides information on locating the key number on the key code card.
Controls
Primary Controls
Details the clutch lever, hand brake lever, and throttle grip.
Left Handlebar Switches
Introduces switches located on the left side of the handlebar.
Left Handlebar Switch Functions
Explains functions of the light, menu, turn signal, and horn switches.
Right Handlebar Switches
Introduces switches located on the right side of the handlebar.
Ignition and Steering Lock
Describes the ignition switch and steering lock mechanism.
Steering Lock Operation
Details procedures for locking and unlocking the steering.
Fuel Tank Filler Cap Operation
Provides procedures for opening and closing the fuel tank filler cap.
Seat Lock Operation
Describes the location and operation of the seat lock.
Vehicle Accessories and Tools
Covers tool set, grab handles, passenger foot pegs, and shift lever.
Brake and Stand Controls
Details the foot brake lever and the side stand.
Combination Instrument
Instrument Overview and Modes
Overview of the instrument, activation, test, and day-night modes.
Display Indicators
Explains warning lights and indicator lamps on the instrument display.
Display Layout and Functions
Details the layout and various functions displayed on the instrument.
Instrument Data Displays
Covers ODO, coolant temperature, fuel level, time, and favorites displays.
Menu Navigation and Quick Selectors
Explains how to navigate menus and use Quick Selectors 1 and 2.
Menu Options: Data and Settings
Covers Trips/Data, Motorcycle, Settings, and Pairing menu options.
Phone and Bluetooth Menus
Details phone and Bluetooth connectivity options within the instrument menu.
Headset and Audio Menus
Explains headset pairing and audio control options in the instrument menu.
Telephony and General Info
Covers telephony functions and general information display.
Trip Information
Details how to access and view Trip 1 data.
ABS and Warning Menus
Covers ABS mode selection and viewing warning messages.
Favourites and Quick Selector Menus
Explains configuration of Favourites and Quick Selector menus.
Bluetooth and Display Theme Settings
Covers Bluetooth connection and display theme configuration.
Shift Light and Time/Date Configuration
Details how to set the shift light and configure time and date.
Distance and Temperature Settings
Explains how to set units for distance and temperature display.
System Settings: Consumption, Language, Service
Covers settings for consumption units, language, service, and extra functions.
Preparing for Use
First Use Procedures
Provides essential advice on preparing the motorcycle for its first use.
Engine Break-in and Loading
Covers engine break-in guidelines and safe vehicle loading procedures.
Riding Instructions
Pre-Ride Checks and Engine Start
Details pre-ride checks and the procedure for starting the engine.
Starting Off and Shifting Gears
Explains how to start riding and how to shift gears while riding.
Braking and Parking Procedures
Covers safe application of brakes and procedures for stopping and parking.
Transport and Refueling
Provides guidelines for transporting the motorcycle and safe refueling.
Service Schedule
Service Information and Requirements
Details additional service information and required maintenance tasks.
Recommended Service Tasks
Lists recommended maintenance tasks and their intervals.
Chassis Tuning
Shock Absorber Adjustment
Explains how to adjust the spring preload of the shock absorber.
Shift Lever Adjustment
Details the procedure for adjusting the shift lever.
Chassis Service Work
Lifting and Securing the Motorcycle
Details procedures for lifting and securing the motorcycle using lifting gear.
Fork and Seat Maintenance
Covers maintenance for fork dust boots and seat removal/mounting.
Chain Maintenance Procedures
Covers chain inspection, cleaning, and tension adjustment procedures.
Chain Tension Adjustment
Details the procedure for adjusting the chain tension.
Sprocket and Chain Wear Check
Explains how to check for wear on the rear sprocket and chain.
Clutch Lever Play Adjustment
Describes how to check and adjust clutch lever play.
Front Spoiler Removal
Details the procedure for removing the front spoiler.
Front Spoiler Installation
Details the procedure for installing the front spoiler.
Brake System
Anti-Lock Braking System (ABS)
Overview of the ABS system, its function, and warnings.
Brake Lever and Disc Checks
Covers hand brake lever adjustment and brake disc inspection.
Front Brake Fluid Service
Details checking and adding front brake fluid.
Front Brake Lining Inspection
Explains how to inspect the thickness of front brake linings.
Foot Brake Lever Travel Adjustment
Details procedures for checking and adjusting foot brake lever travel.
Rear Brake Fluid Level Check
Explains how to check the rear brake fluid level.
Rear Brake Fluid Service
Details checking and adding rear brake fluid.
Rear Brake Lining Inspection
Explains how to inspect the thickness of rear brake linings.
Wheels and Tires
Front Wheel Service
Covers procedures for removing and installing the front wheel.
Rear Wheel Service
Covers procedures for removing and installing the rear wheel.
Rear Hub Damping and Tire Condition
Covers checks for rear hub damping rubbers and tire condition.
Tire Pressure Checks
Details procedures for checking and correcting tire pressure.
Electrical System
Daytime Running Lights and Battery Service
Covers DRL function and procedures for battery removal/installation.
12-V Battery Charging
Details procedures for charging the 12-V battery.
Fuse Replacement Procedures
Procedures for replacing main, ABS, and individual circuit fuses.
Headlight Adjustment and Settings
Covers checking and adjusting headlight beam settings and range.
Connectors and Power Supplies
Details locations of diagnostics connectors and ACC power supplies.
Cooling System
Cooling System Overview and Checks
Overview of the cooling system and checks for antifreeze and coolant levels.
Coolant Level Checks
Explains how to check the coolant level in the compensating tank and radiator.
Coolant Draining and Refilling
Procedures for draining and refilling the cooling system.
Coolant Changing Procedure
Details the steps for changing the engine coolant.
Engine Tuning
Clutch Lever Play Adjustment
Describes how to check and adjust clutch lever play.
Engine Service Work
Engine Oil Level Check
Explains how to check the engine oil level.
Engine Oil and Filter Maintenance
Covers changing engine oil, oil filter, and cleaning oil screens.
Adding Engine Oil
Details the procedure for adding engine oil.
Cleaning and Care
Motorcycle Cleaning
Provides guidelines for cleaning the motorcycle safely and effectively.
Winter Operation Preparations
Outlines checks and maintenance steps for winter operation.
Storage Procedures
Motorcycle Storage Steps
Details the steps for preparing and storing the motorcycle for extended periods.
Preparation for Use After Storage
Outlines the procedures for preparing the motorcycle after it has been stored.
Troubleshooting Guide
Common Issues and Solutions
Lists common motorcycle faults, their possible causes, and recommended actions.
Technical Data
Engine Specifications
Provides detailed technical specifications for the engine.
Engine Tightening Torques
Lists torque specifications for various engine components.
Capacities, Fuel, and Chassis Specs
Technical specifications for capacities, fuel types, and chassis components.
Tire Pressure, Electrical, and Tire Specs
Technical data for tire pressure, electrical system components, and tire models.
Fork, Shock Absorber, and Chassis Torques
Specifications for fork, shock absorber, and chassis component tightening torques.
Declarations of Conformity
Wireless System Declarations
Contains declarations of conformity for wireless systems used in the vehicle.
Substances and Fluids
Brake Fluid, Coolant, and Oil Specifications
Details on recommended brake fluid, coolant, and engine oil types.
Fuel and Fork Oil Specifications
Details on recommended fuel types and fork oil specifications.
Auxiliary Substances
Recommended Maintenance Products
Lists recommended auxiliary substances such as cleaners and lubricants.
Standards Information
JASO and SAE Standards Explained
Explains the meaning and application of JASO and SAE standards for oils.
Special Terms Index
Key Term Definitions
Definitions for key terms like ABS, DRL, KTM MY RIDE, and OBD.
List of Abbreviations
Common Abbreviations Used
Lists common abbreviations used in the manual with their meanings.
List of Symbols
Symbol Meaning Categories
Explains the meaning of red, yellow/orange, and green/blue symbols.

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