Contents

1 MEANS OF REPRESENTATION
- 1.1 Symbols used
- 1.2 Formats used
2 SAFETY ADVICE
- 2.1 Use definition intended use
- 2.2 Misuse
- 2.3 Safety advice
- 2.4 Degrees of risk and symbols
- 2.5 Tampering warning
- 2.6 Safe operation
- 2.7 Protective clothing
- 2.8 Work rules
- 2.9 Environment
- 2.10 Owner's Manual
3 IMPORTANT NOTES
- 3.1 Manufacturer warranty, implied warranty
- 3.2 Fuel, auxiliary substances
- 3.3 Spare parts, technical accessories
- 3.4 Service
- 3.5 Figures
- 3.6 Customer service
4 VIEW OF VEHICLE
- 4.1 View of vehicle, front left (example)
- 4.2 View of vehicle, rear right (example)
5 SERIAL NUMBERS
- 5.1 Vehicle identification number
- 5.2 Type label
- 5.3 Engine number
- 5.4 Fork part number
- 5.5 Shock absorber article number
6 CONTROLS
- 6.1 Clutch lever
- 6.2 Hand brake lever
- 6.3 Throttle grip
- 6.4 Stop button
- 6.5 Start button
- 6.6 Combination switch
- 6.7 Overview of indicator lights (All SX models)
- 6.8 Overview of indicator lights (All XC models)
- 6.9 Combination instrument
- 6.10 Opening fuel tank filler cap
- 6.11 Closing the fuel tank filler cap
- 6.12 Cold start button
- 6.13 Idle speed adjusting screw
- 6.14 Shift lever
- 6.15 Foot brake lever
- 6.16 Plug-in stand (All SX models)
- 6.17 Side stand (All XC models)
7 PREPARING FOR USE
- 7.1 Advice on preparing for first use
- 7.2 Running in the engine
- 7.3 Starting power of lithium-ion batteries at low temperatures
- 7.4 Preparing the vehicle for difficult operating conditions
- 7.5 Preparing the vehicle for rides on dry sand
- 7.6 Preparing the vehicle for rides on wet sand
- 7.7 Preparing the vehicle for rides on wet and muddy circuits
- 7.8 Preparing vehicle for high temperatures or slow riding
- 7.9 Preparing the vehicle for low temperatures or snow
8 RIDING INSTRUCTIONS
- 8.1 Checks and maintenance measures when preparing for use
- 8.2 Starting the vehicle
- 8.3 Starting off
- 8.4 Shifting, riding
- 8.5 Braking
- 8.6 Stopping, parking
- 8.7 Transporting
- 8.8 Refueling
9 SERVICE SCHEDULE
- 9.1 Additional information
- 9.2 Service schedule
10 TUNING THE CHASSIS
- 10.1 Checking the basic chassis setting with rider's weight
- 10.2 Compression damping of the shock absorber
- 10.3 Adjusting the low-speed compression damping of the shock absorber
- 10.4 Adjusting the high-speed compression damping of the shock absorber
- 10.5 Adjusting the rebound damping of the shock absorber
- 10.6 Measuring the dimension of the rear wheel unloaded
- 10.7 Checking the static sag of the shock absorber
- 10.8 Checking the riding sag of the shock absorber
- 10.9 Adjusting the spring preload of the shock absorber
- 10.10 Adjusting the riding sag
- 10.11 Air suspension XACT
- 10.12 Checking the basic setting of the fork
- 10.13 Adjusting the fork air pressure
- 10.14 Adjusting the compression damping of the fork
- 10.15 Adjusting the rebound damping of the fork
- 10.16 Handlebar position
- 10.17 Adjusting the handlebar position
11 SERVICE WORK ON THE CHASSIS
- 11.1 Raising the motorcycle with a lift stand
- 11.2 Removing the motorcycle from the lift stand
- 11.3 Bleeding the fork legs
- 11.4 Cleaning the dust boots of the fork legs
- 11.5 Removing the fork protector
- 11.6 Installing the fork protector
- 11.7 Removing the engine guard (All XC models)
- 11.8 Installing the engine guard (All XC models)
- 11.9 Removing the frame protector
- 11.10 Installing the frame protector
- 11.11 Removing the fork legs
- 11.12 Installing the fork legs
- 11.13 Removing the lower triple clamp
- 11.14 Installing the lower triple clamp
- 11.15 Checking steering head bearing play
- 11.16 Adjusting steering head bearing play
- 11.17 Lubricating the steering head bearing
- 11.18 Removing the start number plate
- 11.19 Installing the start number plate
- 11.20 Removing front fender
- 11.21 Installing front fender
- 11.22 Removing the shock absorber
- 11.23 Installing the shock absorber
- 11.24 Removing the seat
- 11.25 Mounting the seat
- 11.26 Removing the air filter box cover
- 11.27 Installing the air filter box cover
- 11.28 Removing the air filter
- 11.29 Cleaning the air filter and air filter box
- 11.30 Installing the air filter
- 11.31 Preparing air filter box cover for securing
- 11.32 Removing the main silencer
- 11.33 Installing the main silencer
- 11.34 Changing the glass fiber yarn filling in the main silencer
- 11.35 Removing the fuel tank
- 11.36 Installing the fuel tank
- 11.37 Checking the chain for dirt
- 11.38 Cleaning the chain
- 11.39 Checking the chain tension
- 11.40 Adjusting the chain tension
- 11.41 Checking the chain, rear sprocket, engine sprocket, and chain guide
- 11.42 Checking the frame
- 11.43 Checking the link fork
- 11.44 Checking the throttle cable routing
- 11.45 Checking the rubber grip
- 11.46 Adjusting the basic position of the clutch lever
- 11.47 Checking/correcting the fluid level of the hydraulic clutch
- 11.48 Changing the hydraulic clutch fluid
12 BRAKE SYSTEM
- 12.1 Checking the free travel of the hand brake lever
- 12.2 Adjusting the basic position of the hand brake lever
- 12.3 Checking the brake discs
- 12.4 Checking the front brake fluid level
- 12.5 Adding front brake fluid
- 12.6 Checking that the brake linings of the front brake are secured
- 12.7 Changing the brake linings of the front brake
- 12.8 Checking the free travel of foot brake lever
- 12.9 Adjusting the basic position of the foot brake lever
- 12.10 Checking the rear brake fluid level
- 12.11 Adding rear brake fluid
- 12.12 Checking that the brake linings of the rear brake are secured
- 12.13 Changing the rear brake linings
13 WHEELS, TIRES
- 13.1 Removing the front wheel
- 13.2 Installing the front wheel
- 13.3 Removing the rear wheel
- 13.4 Installing the rear wheel
- 13.5 Checking the tire condition
- 13.6 Checking tire pressure
- 13.7 Checking spoke tension
14 ELECTRICAL SYSTEM
- 14.1 Removing the 12-V battery
- 14.2 Installing the 12-V battery
- 14.3 Charging the 12-V battery
- 14.4 Changing the main fuse
- 14.5 Changing the fuse of the fuel pump
- 14.6 Diagnostics connector
15 COOLING SYSTEM
- 15.1 Cooling system
- 15.2 Checking the antifreeze and coolant level
- 15.3 Checking the coolant level
- 15.4 Draining the coolant
- 15.5 Refilling with coolant
- 15.6 Changing the coolant
16 EXHAUST CONTROL
- 16.1 Programming the
17 TUNING THE ENGINE
- 17.1 Changing the mapping
- 17.2 Checking the play in the throttle cable
- 17.3 Adjusting the play in the throttle cable
- 17.4 Adjusting the idle speed
- 17.5 Checking the basic position of the shift lever
- 17.6 Adjusting the basic position of the shift lever
18 SERVICE WORK ON THE ENGINE
- 18.1 Changing the fuel screen
- 18.2 Checking the gear oil level
- 18.3 Changing the gear oil
- 18.4 Adding the gear oil
19 CLEANING, CARE
- 19.1 Cleaning the motorcycle
20 STORAGE
- 20.1 Storage
- 20.2 Preparing for use after storage
21 TROUBLESHOOTING
22 BLINK CODE
23 TECHNICAL DATA
- 23.1 Engine
- 23.2 Engine tightening torques
- 23.3 Capacities
  - 23.3.1 Gear oil
  - 23.3.2 Coolant
  - 23.3.3 Fuel
- 23.4 Chassis
- 23.5 Electrical system
- 23.6 Tires
- 23.7 Fork
  - 23.7.1 All SX models
  - 23.7.2 All XC models
- 23.8 Shock absorber
  - 23.8.1 All SX models
  - 23.8.2 All XC models
- 23.9 Chassis tightening torques
24 SUBSTANCES
25 AUXILIARY SUBSTANCES
26 STANDARDS
27 INDEX OF SPECIAL TERMS
28 LIST OF ABBREVIATIONS
29 LIST OF SYMBOLS
- 29.1 Yellow and orange symbols
- 29.2 Green and blue symbols
INDEX
- 1
- A
- B
- C
- D
- E
- F
- G
- H
- I
- L
- M
- O
- P
- R
- S
- T
- U
- V
- W

KTM SX 250 2023 Owner's Manual

Pages 151

Year 2023

Language(s)

of 151

KTM SX 250 2023 Motorcycle Specification

The KTM SX 250 2023 is a high-performance motocross motorcycle designed to deliver unparalleled power, agility, and durability. At its core, the bike is equipped with a 249cc, single-cylinder, 2-stroke engine that features advanced fuel-injection technology, ensuring a responsive throttle and consistent power delivery across the rev range. The engine is mated to a 5-speed transmission that offers precise gear shifts, enhancing the bike's overall performance on varied terrains.

The frame is constructed from a lightweight, high-strength chromoly steel that provides a perfect blend of rigidity and flexibility, optimizing handling and stability. The suspension system is spearheaded by WP XACT air forks in the front and a WP XACT rear shock, both of which are fully adjustable to cater to different riding styles and conditions, ensuring maximum traction and comfort.

The braking system comprises high-performance Brembo brakes, ensuring reliable stopping power and control. The bike rides on a set of robust wheels with CNC-machined hubs and lightweight aluminum rims, shod with premium Dunlop Geomax MX33 tires that provide exceptional grip and durability.

Ergonomics are meticulously designed, featuring a slim profile and a strategically positioned handlebar to offer riders maximum control and comfort. The seat is crafted from high-density foam, providing excellent support during long rides. Additionally, the KTM SX 250 2023 includes a multifunctional digital display that provides essential information such as speed, engine rpm, and maintenance alerts.

Enhanced with top-tier components and cutting-edge technology, the KTM SX 250 2023 is engineered to meet the demands of competitive motocross riders, making it a formidable choice for both professional racers and serious enthusiasts.

KTM SX 250 2023 Motorcycle F.A.Q.

What is the recommended break-in procedure for the KTM SX 250 2023?

To ensure optimum performance and longevity, ride the bike at varying speeds and loads for the first 1-2 hours, avoiding high RPMs. After the break-in period, change the engine oil and check the bike for any loose bolts or fittings.

How often should I change the air filter on my KTM SX 250 2023?

The air filter should be inspected after every ride and cleaned or replaced as needed, especially in dusty or muddy conditions. Regular maintenance ensures optimal engine performance and longevity.

What type of engine oil is recommended for the KTM SX 250 2023?

Use a high-quality, fully synthetic 2-stroke motorcycle oil. The recommended viscosity is typically 10W-50, but always refer to the owner's manual for the specific oil requirements.

How do I adjust the suspension settings for different terrains on the KTM SX 250 2023?

The suspension can be adjusted via the compression and rebound clickers located on the forks and shock. For harder terrain, increase the damping, and for softer terrain, reduce the damping. Always make incremental adjustments and test ride to find the best setting.

What should I do if my KTM SX 250 2023 won't start?

Check the fuel level and ensure the fuel tap is on. Inspect the spark plug for fouling and ensure the kill switch is in the 'run' position. If the problem persists, consult a professional mechanic.

How can I maintain the brake system on my KTM SX 250 2023?

Regularly check the brake pads for wear and replace them when necessary. Ensure the brake fluid is at the correct level and replace it according to the maintenance schedule to prevent moisture absorption.

How do I properly store my KTM SX 250 2023 for the winter?

Clean the motorcycle thoroughly and lubricate all moving parts. Add a fuel stabilizer to the tank and run the engine for a few minutes. Remove the battery and store it in a cool, dry place. Cover the bike to protect it from dust and moisture.

What tire pressure is recommended for the KTM SX 250 2023?

For optimal performance, maintain a tire pressure of 12-15 psi for the front tire and 12-15 psi for the rear tire. Adjust the pressure based on the terrain and riding conditions.

How can I improve the fuel efficiency of my KTM SX 250 2023?

Maintain proper tire pressure and ensure the air filter is clean. Use high-quality fuel and avoid aggressive acceleration and braking. Regular maintenance and tuning of the engine can also enhance fuel efficiency.

What is the correct chain tension for the KTM SX 250 2023?

Ensure there is 1.5-2 inches of slack in the chain when measured midway between the front and rear sprockets. Regularly check and adjust the tension to prevent premature wear and ensure safe operation.