KTM 250 SX 2020 User Manual

OWNER'S MANUAL 2020
250 SX
Art. no. 3214001en

KTM 250 SX 2020 Specifications

General

Displacement	249 cm³
Bore x Stroke	66.4 mm x 72 mm
Starter	Kickstarter
Transmission	5-speed
Front Suspension	WP XACT-USD, Ø 48 mm
Front Brake	Disc brake
Rear Brake	Disc brake
Fuel Tank Capacity	7.5 liters
Ground Clearance	375 mm
Seat Height	950 mm
Cooling	Liquid cooled
Engine Type	1-cylinder, 2-stroke
Rear Suspension	WP XACT Monoshock

Summary

DEAR KTM CUSTOMER

MEANS OF REPRESENTATION

Symbols Used in Manual

Explains the meaning of various symbols used throughout the manual.

Typographical Formats Explained

Describes the different text formats used in the document.

SAFETY ADVICE

Intended Use, Misuse, and General Safety Advice

Defines intended use, misuse, and provides general safety instructions.

Degrees of Risk and Hazard Symbols

Explains hazard levels and associated symbols for warnings.

Tampering Warnings

Warns against tampering with the noise control system.

Safe Operation Guidelines

Provides essential guidelines for safe vehicle operation.

Protective Clothing and Work Rules

Recommends protective gear and outlines work procedures.

Environmental Protection and Owner's Manual

Covers environmental responsibility and manual importance.

IMPORTANT NOTES AND VEHICLE VIEWS

Warranty, Service, and Customer Support

Details warranty, service requirements, and customer assistance.

Vehicle Identification and Component Views

Shows vehicle views and identifies serial numbers.

CONTROLS AND PREPARATION FOR USE

Operation of Motorcycle Controls

Explains the function and operation of various controls.

First Use Preparation and Riding Advice

Guides on initial setup and general riding preparation.

Engine Break-in and Difficult Conditions

Covers engine break-in and adapting for tough conditions.

Adapting for Difficult Riding Conditions

Provides advice for riding in varied conditions like sand and mud.

RIDING INSTRUCTIONS AND SERVICE SCHEDULE

Pre-Ride Checks and Starting Procedures

Covers pre-ride checks and engine starting methods.

Basic Riding and Shifting Techniques

Explains gear shifting, riding, and starting off.

Braking Techniques and Stopping/Parking

Details braking, stopping, and parking procedures.

Motorcycle Transporting

Provides instructions for safely transporting the motorcycle.

Refueling Procedures

Outlines safe and correct refueling steps.

Scheduled Maintenance Tasks

Details required and recommended maintenance intervals.

CHASSIS TUNING AND SERVICE

Basic Chassis and Air Suspension Setup

Covers initial chassis setup and air suspension details.

Shock Absorber Compression Damping

Explains adjustment of low and high-speed compression.

Shock Absorber Damping Adjustments

Details rebound damping and spring preload adjustments.

Rear Wheel Dimension and Static Sag Checks

Guides on measuring rear wheel dimension and static sag.

Riding Sag Check and Adjustment

Explains how to check and adjust riding sag.

Shock Absorber Spring Preload Adjustment

Details the procedure for adjusting shock absorber spring preload.

Fork Damping Adjustments

Explains how to adjust fork compression and rebound damping.

Handlebar Position Adjustments

Covers handlebar position adjustments for rider comfort.

Chassis Component Service Procedures

Details service for various chassis components.

Fork Leg Service Procedures

Covers removal and installation of fork legs.

Triple Clamp and Steering Head Bearing Service

Service procedures for triple clamps and steering head bearings.

Shock Absorber and Chain Service

Details shock absorber and chain maintenance procedures.

Fuel Tank, Exhaust, and Clutch Service

Covers service for fuel tank, exhaust, and clutch systems.

BRAKE SYSTEM AND WHEELS/TIRES

Brake System Checks and Maintenance

Covers all aspects of brake system checks and maintenance.

Wheel and Tire Maintenance

Details procedures for wheel and tire checks and servicing.

COOLING SYSTEM AND ENGINE TUNING

Cooling System Overview and Checks

Covers cooling system basics and coolant level checks.

Coolant Draining and Refilling

Provides instructions for draining and refilling coolant.

Throttle Cable Play and Idle Control

Details throttle cable play checks and idle speed adjustments.

Carburetor Tuning Procedures

Explains carburetor tuning for optimal performance.

Idle Speed Adjustment

Guides on adjusting the engine idle speed.

Ignition Timing Map and Shift Lever Adjustments

Covers ignition timing map changes and shift lever position.

Engine Characteristic Adjustment

Details adjusting auxiliary springs for engine characteristic.

ENGINE SERVICE AND GENERAL CARE

Carburetor Float Chamber Emptying

Procedure for emptying the carburetor float chamber.

Gear Oil Level Check and Change

Covers gear oil level checks and oil changing procedures.

Motorcycle Cleaning and Storage

Provides guidelines for cleaning and storing the motorcycle.

TROUBLESHOOTING AND TECHNICAL DATA

Engine Starting and Performance Issues

Addresses common engine starting and running problems.

Engine Overheating and Emission Faults

Troubleshoots overheating, smoke, and oil leaks.

Engine Specifications and Tightening Torques

Provides detailed engine specs and component torque values.

Carburetor Tuning and Settings

Lists carburetor settings and tuning data.

Chassis, Electrical System, and Tires

Details chassis, electrical, and tire specifications.

Fork and Shock Absorber Specifications

Provides specifications for fork and shock absorber components.

Tightening Torques for Chassis Components

Lists torque specifications for various chassis fasteners.

SUBSTANCES, AUXILIARIES, AND STANDARDS

Fluid Specifications: Brake, Coolant, Engine Oils

Specifies types and standards for fluids like brake fluid, coolant, and oils.

Fuel Types and Suspension Fluids

Details fuel grades and specifications for fork/shock absorber fluids.

Recommended Products and Standards

Lists recommended auxiliary products and industry standards.

LIST OF ABBREVIATIONS