Husqvarna FX 450 2022 User Manual (English)

Questions and Answers:

R
Reginald FriedmanAug 9, 2025
Why does my Husqvarna FX 450 2022 Motorcycle have high oil consumption?
- J
  Jesse ClarkAug 9, 2025
  High oil consumption in your Husqvarna Motorcycle can be due to several reasons. It could be that the engine vent hose is bent, in which case you should route the vent hose without bends or replace it. The engine oil level might be too high, so check the engine oil level. Also, the engine oil might be too thin (low viscosity), so consider changing the engine oil and the oil filter and cleaning the oil screens. Finally, the piston or cylinder may be worn, requiring you to measure the piston/cylinder mounting clearance.
K
Katherine BaileyAug 20, 2025
What to do if the malfunction indicator lamp lights up on my Husqvarna Motorcycle?
- F
  Frank TaylorAug 20, 2025
  If the malfunction indicator lamp lights up or flashes on your Husqvarna Motorcycle, it indicates a malfunction in the electronic fuel injection. Inspect the wiring for any damage and check the electrical plug-in connections for corrosion and damage. Also, read out the fault memory using the Husqvarna Motorcycles diagnostics tool.
C
Charles RodriguezAug 28, 2025
How to troubleshoot a discharged 12V battery on a Husqvarna FX 450 2022?
- W
  westrichardAug 28, 2025
  If the 12 V battery is discharged on your Husqvarna Motorcycle, it could be due to a couple of reasons. The 12 V battery might not be charging, so you should check the charging voltage and the stator winding of the alternator. Another possibility is an unwanted electrical power consumer, so check the open-circuit current.

Husqvarna FX 450 2022 Specifications

General

Engine Type	Single-cylinder, 4-stroke
Displacement	449.9 cc
Transmission	5-speed
Rear Suspension	WP XACT Monoshock
Starter	Electric
Front Brake Diameter	260 mm
Rear Brake Diameter	220 mm
Bore x Stroke	95 mm x 63.4 mm
Power	63 hp
Fuel System	Electronic Fuel Injection
Front Suspension	WP XACT-USD, 48 mm
Front Brake	Disc brake
Rear Brake	Disc brake
Ground Clearance	370 mm

Summary

Safety Advice

Intended Use Definition

Defines the intended use for FC 450 EU, FC 450 US, and FX 450 models.

Misuse

Describes dangers and consequences of using the vehicle not as intended.

General Safety Instructions

Emphasizes following safety instructions and labels.

Degrees of Risk and Symbols

Explains danger, warning, caution, and note symbols.

Tampering Warning

Warns against tampering with the noise control system.

Safe Operation Guidelines

Provides safety advice for operating the vehicle, including rider fitness and exhaust gases.

Protective Clothing Requirements

Advises on wearing appropriate protective clothing for riding.

Owner's Manual Importance

Stresses the importance of reading and understanding the manual.

Important Notes

Service and Maintenance Importance

Controls

Clutch Lever Operation

Describes the clutch lever and its operation.

Hand Brake Lever Function

Describes the hand brake lever for the front brake.

Throttle Grip Operation

Describes the throttle grip.

Stop Button Functionality

Explains the function and states of the stop button.

Start Button Functionality

Explains the function and states of the start button.

Combination Switch Usage

Describes the combination switch for mapping and controls.

Indicator Lamp Overview

Explains the meaning of indicator lamps.

Opening Fuel Tank Filler Cap

Details how to open the fuel tank filler cap safely.

Shift Lever Operation

Describes the shift lever and gear positions.

Foot Brake Lever Operation

Describes the foot brake lever for the rear brake.

Preparing for Use

First Use Preparation Advice

Provides essential advice for initial vehicle preparation and safe riding.

Engine Running-In Procedure

Details the procedure and limits for engine break-in.

Preparation for Difficult Conditions

Advises on preparing the vehicle for challenging terrains and conditions.

Riding Instructions

Pre-Ride Checks and Maintenance

Lists essential pre-ride checks for safety and operation.

Starting the Vehicle Safely

Details the procedure for safely starting the engine, with warnings.

Starting Off Procedure

Describes the procedure for starting off from a standstill.

Shifting Gears and Riding Techniques

Provides instructions on gear shifting and riding techniques.

Braking Techniques

Details how to apply brakes safely and effectively.

Stopping and Parking Procedures

Provides instructions on how to stop and park the motorcycle safely.

Refueling Safely

Explains the safe and correct procedure for refueling.

Service Schedule

Required Maintenance Tasks

Lists mandatory maintenance tasks and their intervals.

Tuning the Chassis

Basic Chassis Setting with Rider Weight

Guides on adjusting chassis settings based on rider weight.

Shock Absorber Compression Damping

Explains high-speed and low-speed compression damping.

Adjusting Low-Speed Compression Damping

Details how to adjust low-speed compression damping.

Adjusting High-Speed Compression Damping

Details how to adjust high-speed compression damping.

Adjusting Shock Absorber Rebound Damping

Details how to adjust rebound damping of the shock absorber.

Measuring Unloaded Rear Wheel Dimension

Guides on measuring rear wheel dimension for sag adjustment.

Checking Static Sag of Shock Absorber

Explains how to check static sag.

Checking Riding Sag of Shock Absorber

Explains how to check riding sag.

Adjusting Shock Absorber Spring Preload

Details how to adjust spring preload.

Adjusting Riding Sag with Spring Selection

Guides on adjusting riding sag by choosing springs.

Checking Basic Fork Setting

Explains how to check the fork's basic setting.

Adjusting Fork Air Pressure

Details how to adjust fork air pressure.

Adjusting Fork Compression Damping

Guides on adjusting fork compression damping.

Adjusting Fork Rebound Damping

Guides on adjusting fork rebound damping.

Service Work on the Chassis

Raising Motorcycle with Lift Stand

Explains how to safely lift the motorcycle using a stand.

Removing Motorcycle from Lift Stand

Explains how to safely lower the motorcycle from a stand.

Bleeding Fork Legs

Details the procedure for bleeding the fork legs.

Removing Fork Legs

Details how to remove the fork legs.

Installing Fork Legs

Details how to install the fork legs correctly.

Removing Lower Triple Clamp

Installing Lower Triple Clamp

Checking Steering Head Bearing Play

Adjusting Steering Head Bearing Play

Removing Shock Absorber

Installing Shock Absorber

Removing the Air Filter

Installing the Air Filter

Removing the Main Silencer

Installing the Main Silencer

Removing the Fuel Tank

Installing the Fuel Tank

Cleaning the Chain

Checking Chain Tension

Adjusting Chain Tension

Checking Chain, Sprockets, and Guide

Checking/Correcting Hydraulic Clutch Fluid Level

Changing Hydraulic Clutch Fluid

Brake System

Checking Hand Brake Lever Free Travel

Checking Brake Discs

Checking Front Brake Fluid Level

Adding Front Brake Fluid

Checking Front Brake Linings

Changing Front Brake Linings

Checking Foot Brake Lever Free Travel

Checking Rear Brake Fluid Level

Adding Rear Brake Fluid

Checking Rear Brake Linings

Changing Rear Brake Linings

Wheels, Tires

Removing the Front Wheel

Installing the Front Wheel

Removing the Rear Wheel

Installing the Rear Wheel

Checking Tire Condition

Checking Tire Pressure

Electrical System

Removing the 12-V Battery

Installing the 12-V Battery

Charging the 12-V Battery

Changing the Main Fuse

Cooling System

Checking Antifreeze and Coolant Level

Checking Coolant Level

Draining the Coolant

Refilling with Coolant

Changing the Coolant

Tuning the Engine

Checking Throttle Cable Play

Adjusting Throttle Cable Play

Adjusting Idle Speed

Teaching Throttle Valve Position

Service Work on the Engine

Changing Fuel Screen

Checking Engine Oil Level

Engine Oil and Filter Change

Adding Engine Oil

Storage

Troubleshooting

Engine Does Not Turn When Start Button Pressed

Lists possible causes and actions for starting issues.

Engine Turns But Does Not Start

Lists possible causes and actions for engine not starting.

Engine Does Not Speed Up

Lists possible causes and actions for lack of acceleration.

Engine Has Too Little Power

Lists possible causes and actions for low engine power.

Engine Overheats

Lists possible causes and actions for engine overheating.

Malfunction Indicator Lamp Issues

Lists causes and actions for malfunction indicator lamp.

12 V Battery Discharged

Lists causes and actions for discharged 12V battery.

Blink Code

Blink Code 02a: Throttle Valve Position

Explains blink code 02a related to throttle valve position.

Blink Code 02: Crankshaft Speed Sensor

Explains blink code 02 related to crankshaft speed sensor.

Blink Code 06: Throttle Valve Position Sensor

Explains blink code 06 related to throttle valve position sensor.

Blink Code 09: Pressure Sensor Issues

Explains blink code 09 related to pressure sensors.

Blink Code 12: Coolant Temperature Sensor

Explains blink code 12 related to coolant temperature sensor.

Blink Code 13: Intake Air Temperature Sensor

Explains blink code 13 related to intake air temperature sensor.

Blink Code 15: Tilt Sensor Issues

Explains blink code 15 related to tilt sensor.

Blink Code 21: Battery Voltage Issues

Explains blink code 21 related to battery voltage.

Blink Code 22: Gear Position Sensor Issues

Explains blink code 22 related to gear position sensor.

Blink Code 33: Injection Valve Fault

Explains blink code 33 related to injection valve.

Blink Code 37: Ignition Coil Fault

Explains blink code 37 related to ignition coil.

Blink Code 41: Fuel Pump Controller Fault

Explains blink code 41 related to fuel pump controller.

Blink Code 65: EEPROM Malfunction

Explains blink code 65 related to EEPROM.

Continuous Malfunction Indicator Lamp

Explains continuous malfunction lamp indication.

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Table of Contents