KTM 350 SX-F 2011 User Manual (English)

Questions and Answers:

D
Danielle CampbellAug 8, 2025
What to do if my KTM 350 SX-F 2011 Motorcycle engine does not turn when the starter button is pressed?
- C
  Cheyenne HurleyAug 9, 2025
  If the engine doesn't turn when you press the starter, possible causes include an operating error (make sure to follow the correct start procedure), a discharged battery (charge the battery, and check the charging voltage, quiescent current, and stator winding of the alternator), a blown main fuse (replace the main fuse), a defective starter relay (check the starter relay), or a defective starter motor (check the starter motor).
C
Catherine AlexanderAug 14, 2025
What to do if my KTM Motorcycle engine turns but does not start?
- A
  Alexandra CarterAug 14, 2025
  If your KTM Motorcycle engine turns but doesn't start, check the following: Ensure the fuel hose connection is properly joined. Adjust the idle speed if it's not set correctly. Clean and dry the spark plug (or replace if needed), and adjust the plug gap to 0.8 mm (0.031 in). Inspect the wiring harness and electrical system for frayed wires or a defective kill switch. Clean any oxidized plug connectors on the EFI control device, ignition pulse generator, or ignition coil with contact spray. Finally, have the fuel injection system checked using the KTM diagnostics tool for any defects.
J
Jeremy BarryAug 20, 2025
Why is my KTM 350 SX-F 2011 engine overheating?
- S
  Shelby Bailey DVMAug 20, 2025
  Your KTM Motorcycle engine might be overheating due to several reasons. It could be caused by too little coolant in the cooling system, so check for leakage and the coolant level. Other potential causes include too little air stream (switch off the engine when standing), very dirty radiator fins (clean them), foam formation in the cooling system (drain and refill the coolant), or a bent radiator hose (replace it).
B
blacktylerAug 26, 2025
Why is the FI warning lamp lighting up/flashing on my KTM 350 SX-F 2011 Motorcycle?
- K
  Kristen SmithAug 27, 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.
T
Tamara WilliamsSep 1, 2025
What to do if my KTM Motorcycle engine has too little power?
- S
  Stephanie PriceSep 1, 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).

KTM 350 SX-F 2011 Specifications

General

Engine Type	Single cylinder, 4-stroke
Displacement	349.7 cc
Bore x Stroke	88 x 57.5 mm
Compression Ratio	12.8:1
Transmission	5-speed
Seat Height	992 mm
Fuel Tank Capacity	7.5 L
Ignition	Kokusan
Fuel System	Keihin EFI, 42mm throttle body
Front Suspension	WP 48 mm
Rear Suspension	WP PDS
Front Brake	260 mm disc
Rear Brake	220 mm disc

Summary

Important Information

Service and Maintenance Importance

Importance of proper service and maintenance for operation and wear.

Warranty Conditions

Conditions for warranty claims and voiding.

Controls Overview

Preparing for Use

First Use Advice

Crucial advice and checks before the first ride.

Riding in Difficult Conditions

Adjustments for challenging riding environments.

Riding Instructions

Pre-Ride Checks and Maintenance

Essential pre-ride checks and maintenance.

Braking Techniques

Techniques and warnings for effective braking.

Service Schedule

Standard Service Schedule

Maintenance intervals and tasks based on service levels.

Additional Service Works

Optional service tasks and their recommended intervals.

Tuning the Chassis

Basic Chassis Setting Adjustment

Adjusting suspension for rider weight and optimal handling.

Shock Absorber Compression Damping

Explanation of compression damping ranges.

Low-Speed Compression Damping Adjustment

Procedure for adjusting low-speed compression damping.

High-Speed Compression Damping Adjustment

Procedure for adjusting high-speed compression damping.

Rebound Damping Adjustment (Shock Absorber)

Procedure for adjusting rebound damping.

Spring Preload Adjustment (Shock Absorber)

Method to adjust rear shock spring preload.

Riding Sag Adjustment via Spring Change

Method to adjust riding sag by changing the spring.

Fork Compression Damping Adjustment

Procedure for adjusting front fork compression damping.

Fork Rebound Damping Adjustment

Procedure for adjusting front fork rebound damping.

Handlebar Position Adjustment

Procedure to adjust handlebar mounting position.

Service Work on the Chassis

Checking Steering Head Bearing Play

How to check for play in the steering head bearing.

Adjusting Steering Head Bearing Play

Procedure to adjust steering head bearing play.

Removing Shock Absorber

Procedure for removing the rear shock absorber.

Installing Shock Absorber

Procedure for installing the rear shock absorber.

Cleaning Air Filter and Air Filter Box

How to clean the air filter and its box.

Removing Fuel Tank

Procedure for removing the fuel tank.

Installing Fuel Tank

Procedure for installing the fuel tank.

Checking Chain Tension

How to check the drive chain tension.

Adjusting Chain Tension

Procedure for adjusting drive chain tension.

Changing Hydraulic Clutch Fluid

Procedure for changing hydraulic clutch fluid.

Brakes

Adding Front Brake Fluid

Procedure for adding front brake fluid.

Changing Front Brake Linings

Procedure for changing front brake linings.

Adding Rear Brake Fluid

Procedure for adding rear brake fluid.

Changing Rear Brake Linings

Procedure for changing rear brake linings.

Wheels and Tires

Removing Front Wheel

Procedure for removing the front wheel.

Installing Front Wheel

Procedure for installing the front wheel.

Removing Rear Wheel

Procedure for removing the rear wheel.

Installing Rear Wheel

Procedure for installing the rear wheel.

Electrical System

Charging the Battery

How to charge the battery.

Cooling System

Antifreeze and Coolant Level Check

How to check coolant and antifreeze levels.

Draining the Coolant

Procedure for draining the coolant.

Refilling the Coolant

Procedure for refilling the coolant.

Tuning the Engine

Service Work on the Engine

Engine Oil and Filter Change

Procedure for oil change and filter cleaning.

Cleaning and Care

Cleaning the Motorcycle

General instructions for cleaning the motorcycle.

Troubleshooting Guide

Engine Not Turning Over

Diagnosing and fixing issues with starting the engine.

Engine Turns But Does Not Start

Diagnosing and fixing issues when the engine won't start.

Engine Not Accelerating

Diagnosing and fixing issues with engine acceleration.

Low Engine Power

Diagnosing and fixing issues with low engine power.

Engine Stalling During Trip

Diagnosing and fixing issues with engine stalling.

Engine Overheating

Diagnosing and fixing engine overheating problems.

FI Warning Lamp Indicators

Understanding and addressing FI warning lamp indicators.

High Oil Consumption Diagnosis

Diagnosing and fixing high oil consumption.

Blink Codes

Blink Code 02: Crankshaft Position Sensor

Crankshaft position sensor circuit fault.

Blink Code 06: Throttle Position Sensor

Throttle position sensor circuit faults.

Blink Code 09: MAP Sensor

Manifold absolute pressure sensor faults.

Blink Code 12: Coolant Temperature Sensor

Engine coolant temperature sensor faults.

Blink Code 13: Intake Air Temperature Sensor

Intake air temperature sensor faults.

Blink Code 15: Rollover Sensor

Rollover sensor faults.

Blink Code 33: Injector Cylinder 1 Fault

Injector cylinder 1 circuit fault.

Blink Code 37: Ignition Coil 1 Fault

Ignition coil 1 circuit fault.

Blink Code 41: Fuel Pump Control Fault

Fuel pump control faults.

Technical Data - Engine

Engine Oil Capacity and Type

Engine oil capacity and recommended types.

Coolant Capacity and Type

Coolant capacity and recommended types.

Technical Data - Engine Tightening Torques

Technical Data - Chassis

Fuel Tank Capacity

Fuel tank capacity and type.

Technical Data - Fork

Fork Specifications (All SX-F Models)

Specific fork data for all SX-F models.

Fork Specifications (XC-F)

Technical Data - Tightening Torques for Chassis

Substances

Brake Fluid Recommendations

Coolant Recommendations

Engine Oil (SAE 10W/60) Specifications

Engine Oil (SAE 10W/50) Specifications

Fork Oil (SAE 5) Specifications

Shock Absorber Oil (SAE 2,5) Specifications

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