KTM 350 SX-F - User Manual

Other manuals for KTM 350 SX-F

Setup Instructions28 pages

Questions and Answers

P
probbinsSep 23, 2025
Why is the FI warning lamp lighting up/flashing on my KTM 350 SX-F?
- B
  Brent OwenSep 23, 2025
  If the FI warning lamp (MIL) is lighting up or flashing on your KTM Motorcycle, it indicates a defect in the fuel injection system. You should stop the motorcycle and identify the faulty part using the blink code. Also, check the cabling for damage and the electrical plug-in connections for corrosion and damage. Additionally, it could be caused by a bent engine vent hose (route it without bends or replace it) or an engine oil level that is too high (check the engine oil level). A diagnostic tool can be used to read out the fault memory.
S
Sydney NewtonAug 25, 2025
Why does my KTM 350 SX-F engine overheat?
- M
  Matthew PrestonAug 25, 2025
  If your KTM Motorcycle engine overheats, it could be due to several reasons. Check for coolant leaks and ensure the coolant level is correct. Insufficient airflow can also cause overheating, so switch off the engine when standing. Dirty radiator fins should be cleaned. Foam formation in the cooling system requires draining and refilling the coolant. Finally, inspect the radiator hose for bends and replace if necessary.
C
Christopher SchroederAug 25, 2025
What to do if KTM 350 SX-F Motorcycle engine turns over but won't start?
- K
  Kim KerrAug 26, 2025
  If your KTM Motorcycle engine turns but doesn't start, check the following: ensure the fuel hose connection is properly joined. If the fuel screen in the fuel hose connection is clogged, replace it. Adjust the idle speed if it's not set correctly. Clean or replace oily or wet spark plugs, and adjust the plug gap to 0.8 mm (0.031 in) if it's too wide. Check the wiring harness for frayed short circuit cables and the electrical system for defects. Finally, a defect in the fuel injection system may require reading out the fault memory using the KTM diagnostics tool.
T
twilsonAug 26, 2025
Why does my KTM 350 SX-F Motorcycle have no power?
- L
  Larry HartAug 27, 2025
  If your KTM Motorcycle engine has too little power, start by cleaning the air filter and air filter box. If the fuel filter is very dirty, change it. A defect in the fuel injection system may require diagnosis with the KTM tool. Check the exhaust system for leaks or deformation, and replace the glass fiber yarn filling in the main silencer if needed. Lastly, make sure the valve clearance is properly adjusted.
G
Gina RobertsSep 23, 2025
What to do if my KTM 350 SX-F engine has too little power?
- S
  Sherry RichardsonSep 23, 2025
  If your KTM Motorcycle engine has too little power, the possible causes include a very dirty air filter (clean the air filter and air filter box), a very dirty fuel filter (change the fuel filter), a defect in the fuel injection system (read out the fault memory using the KTM diagnostics tool), a leaky or deformed exhaust system or too little glass fiber yarn filling in the main silencer (check exhaust system for damage and change the glass fiber yarn filling of the main silencer), or valve clearance too little (adjust the valve clearance).
M
michael94Sep 13, 2025
What to do if my KTM 350 SX-F Motorcycle has high oil consumption?
- N
  Nathaniel HollandSep 13, 2025
  If your KTM Motorcycle is experiencing high oil consumption, check these: * Make sure the engine vent hose isn't bent; straighten it or replace if needed. * Verify that the engine oil level is not too high. * Consider that the engine oil might be too thin; in this case, change the oil and filter, and clean the oil screen. * Worn piston or cylinder; measure the piston/cylinder mounting clearance.
J
Jeffery WoodsSep 12, 2025
What to do if my KTM 350 SX-F Motorcycle engine doesn't turn over?
- A
  Andrew RodriguezSep 12, 2025
  If your KTM Motorcycle engine doesn't turn when you press the starter, possible causes include an operating error (ensure you're following the correct start procedure), a discharged battery (charge, check voltage, quiescent current, and stator winding), a blown main fuse (replace it), a defective starter relay (check it), or a defective starter motor (check it).
S
Sherry ClarkSep 12, 2025
What to do if my KTM 350 SX-F engine overheats?
- J
  Janet BoydSep 12, 2025
  If your KTM Motorcycle engine is overheating, consider the following: * Check for coolant leaks and ensure the coolant level is correct. * When stationary, switch off the engine to prevent insufficient airflow. * Clean any dirt from the radiator fins. * Address foam formation by draining and refilling the coolant. * Inspect and replace any bent radiator hoses.
J
Jacob CalderonSep 4, 2025
What causes a KTM 350 SX-F Motorcycle engine to not speed up?
- P
  Patty RandallSep 4, 2025
  If the KTM Motorcycle engine does not speed up, it may be due to a defect in the fuel injection system. Read out the fault memory using the KTM diagnostics tool.
D
Danielle HansonSep 2, 2025
How to troubleshoot a KTM 350 SX-F Motorcycle engine that won't turn over when the starter button is pressed?
- J
  Jessica MirandaSep 2, 2025
  If the KTM Motorcycle engine does not turn when the starter button is pressed, it could be due to a discharged battery, so charge the battery. Another possibility is a blown main fuse, so change the main fuse.

Summary

OWNERS MANUAL 2019

350 SX‑F; 350 XC‑F

Owner's manual for KTM 350 SX-F and 350 XC-F models.

Article no. 3213850 en

Identifies the specific article number of the manual.

2 SAFETY ADVICE

2.1 Use definition - intended use

Defines the intended use of the SX-F and XC-F models.

2.4 Degrees of risk and symbols

Explains the meaning of danger, warning, caution, and note symbols.

2.6 Safe operation

Covers dangers of accidents and poisoning related to safe operation.

6 CONTROLS

6.1 Clutch lever

Describes the clutch lever and its operation.

6.5 Electric starter button

Describes the electric starter button and its operation.

6.6 Combination switch

Explains the functions of the combination switch for engine mapping and controls.

7 PREPARING FOR USE

7.1 Advice on preparing for first use

Covers essential safety advice and checks before initial use.

7.4 Preparing the vehicle for difficult operating conditions

Offers advice on preparing the vehicle for challenging conditions.

8 RIDING INSTRUCTIONS

8.1 Checks and maintenance measures when preparing for use

Lists essential checks before every trip to ensure safe operation.

8.7 Applying the brakes

Covers safe and effective braking techniques.

10 TUNING THE CHASSIS

10.1 Checking the basic chassis setting with the riders weight

Explains how to adjust chassis settings based on rider weight.

10.8 Checking the static sag of the shock absorber

Explains how to check the static sag of the shock absorber.

11 SERVICE WORK ON THE CHASSIS

11.3 Bleeding the fork legs

Explains how to bleed the fork legs to remove air.

11.18 Removing the shock absorber

Details the steps for removing the shock absorber.

12 BRAKE SYSTEM

12.4 Checking the brake fluid level of the front brake

Guides on checking the front brake fluid level.

12.7 Changing the front brake linings

Guides on changing the front brake linings, with warnings about incorrect maintenance.

13 WHEELS, TIRES

13.1 Removing the front wheel

Explains the process of removing the front wheel, including brake caliper and spindle.

13.6 Checking the tire air pressure

Details how to check and correct tire air pressure.

14 ELECTRICAL SYSTEM

14.1 Removing the battery

Guides on safely removing the motorcycle battery.

15 COOLING SYSTEM

15.2 Checking the antifreeze and coolant level

Guides on checking antifreeze and coolant levels, with warnings.

16 TUNING THE ENGINE

16.3 Adjusting the characteristic map of the throttle response

Details how to change the throttle response by adjusting the guide plate.

17 SERVICE WORK ON THE ENGINE

17.3 Changing the engine oil and oil filter, cleaning the oil screen

Details the process of changing engine oil, filter, and cleaning the oil screen.

18 CLEANING, CARE

18.1 Cleaning the motorcycle

Provides instructions and warnings for cleaning the motorcycle, including pressure washer use.

19 STORAGE

19.1 Storage

Provides steps for storing the motorcycle for longer periods, including fuel, battery, and protection.

20 TROUBLESHOOTING

Engine turns but does not start

Lists possible causes and actions when the engine cranks but doesn't start.

21 BLINK CODE

Blink code for malfunction indicator lamp

Lists malfunction indicator lamp codes and their error conditions.

22 TECHNICAL DATA

22.1 Engine

Provides detailed technical specifications for the engine.

22.9 Chassis tightening torques

Lists tightening torques for various chassis components.

23 SUBSTANCES

Engine oil (SAE 10 W;50)

Specifies standard classifications and recommended suppliers for engine oil.

24 AUXILIARY SUBSTANCES

Motorcycle cleaner

Recommends a motorcycle cleaner.

25 STANDARDS

JASO T903 MA2

Explains the JASO T903 MA2 standard for motorcycle engine oils.

28 LIST OF SYMBOLS

28.1 Yellow and orange symbols

Explains that yellow/orange symbols indicate errors or active driving aids.

KTM 350 SX-F Specifications

General

Displacement	349.7 cc
Bore x Stroke	88 mm x 57.5 mm
Starter	Electric starter
Transmission	5-speed
Cooling	Liquid cooled
Frame	Central Double-Cradle Type 25CrMo4 Steel
Front Suspension	WP XACT-USD, Ø 48 mm
Rear Suspension	WP XACT Monoshock with linkage
Front Brake	Disc brake
Rear Brake	Disc brake
Ground Clearance	370 mm
Seat Height	950 mm
Ignition	Keihin EMS
Final Drive	Chain
Engine Type	Single-cylinder, 4-stroke
Fuel Tank Capacity	7.2 L