Husqvarna FC 450 2022 Owner's Manual
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Husqvarna FC 450 2022 Owner's Manual

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OWNER'S MANUAL 2022
FC 450
FX 450
Art. no. 3402535en

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Summary of Contents for Husqvarna FC 450 2022

  • Page 1 OWNER'S MANUAL 2022 FC 450 FX 450 Art. no. 3402535en...
  • Page 3 DEAR HUSQVARNA MOTORCYCLES CUSTOMER Congratulations on your decision to purchase a Husqvarna motorcycle. You are now the owner of a state-of- DEAR HUSQVARNA MOTORCYCLES CUSTOMER the-art sports vehicle which, with appropriate care, will bring you pleasure for a long time to come.

  • Page 4: Table Of Contents

    TABLE OF CONTENTS TABLE OF CONTENTS 6.14 Plug-in stand (FC 450 EU, MEANS OF REPRESENTATION......5 FC 450 US).......... 21 Symbols used ........5 6.15 Side stand (FX 450)......22 Formats used ........5 6.16 Service hour counter......22 SAFETY ADVICE ..........6 PREPARING FOR USE........
  • Page 5 TABLE OF CONTENTS 10.6 Adjusting the rebound damping of 11.26 Cleaning the air filter and air filter the shock absorber ......41 ..........66 10.7 Measuring the rear wheel dimension 11.27 Removing the main silencer....67 unloaded ..........42 11.28 Installing the main silencer....68 10.8 Checking the static sag of the 11.29 Changing the glass fiber yarn filling...
  • Page 6 TABLE OF CONTENTS 13.4 Installing the rear wheel ....99 TECHNICAL DATA ........133 13.5 Checking the tire condition....101 22.1 Engine ..........133 13.6 Checking tire pressure...... 101 22.2 Engine tightening torques....134 13.7 Checking the spoke tension ..... 102 22.3 Capacities .........

  • Page 7: Means Of Representation 1

    All work marked with this symbol requires specialist knowledge and technical understanding. In the interest of your own safety, have this work performed by an authorized Husqvarna Motorcycles workshop. There, your motorcycle will be optimally cared for by specially trained experts using the specialist tools required.

  • Page 8: Safety Advice

    2 SAFETY ADVICE Use definition – intended use (FC 450 EU, FC 450 US) This vehicle has been designed and built to withstand the normal stresses and strains of racing. This vehi- cle complies with the currently valid regulations and categories of the top international motorsports organi- zations.

  • Page 9: Degrees Of Risk And Symbols

    SAFETY ADVICE 2 Degrees of risk and symbols Danger Identifies a danger that will immediately and invariably lead to fatal or serious permanent injury if the appropriate measures are not taken. Warning Identifies a danger that is likely to lead to fatal or serious injury if the appropriate measures are not taken.

  • Page 10: Protective Clothing

    – Always wear protective clothing that is in good condition and meets the legal regulations. In the interest of your own safety, Husqvarna Motorcycles recommends that you only operate the vehicle while wearing protective clothing. Work rules Unless specified otherwise, the ignition must be turned off during all work (models with ignition lock, models with remote key) or the engine must be at a standstill (models without ignition lock or remote key).

  • Page 11: Owner's Manual

    The Owner's Manual can be downloaded several times using the QR code or the link on the delivery certificate. The Owner's Manual is also available for download from your authorized Husqvarna Motorcycles dealer and on the Husqvarna Motorcycles website. A printed copy can also be ordered from your authorized Husqvarna Motorcycles dealer.

  • Page 12: Important Notes

    3 IMPORTANT NOTES Manufacturer warranty, implied warranty The work prescribed in the service schedule must only be carried out in an authorized Husqvarna Motorcy- cles workshop and confirmed in the Husqvarna Motorcycles Dealer.net, as otherwise all warranty claims will be void. Damage or secondary damage caused by tampering with and/or conversions on the vehicle are not covered by the manufacturer warranty.

  • Page 13: Customer Service

    IMPORTANT NOTES 3 Customer service Your authorized Husqvarna Motorcycles dealer will be happy to answer any questions you may have regarding your vehicle and Husqvarna Motorcycles. A list of authorized Husqvarna Motorcycles dealers can be found on the Husqvarna Motorcycles website.

  • Page 14: View Of Vehicle

    4 VIEW OF VEHICLE View of vehicle, front left (example) A01003-01 Hand brake lever ( p. 16) Clutch lever ( p. 16) Fuel tank filler cap Air filter box cover Plug-in stand ( p. 21) (FC 450 EU, FC 450 US) Engine number ( p.

  • Page 15: View Of Vehicle, Rear Right (Example)

    VIEW OF VEHICLE 4 View of vehicle, rear right (example) A01004-01 Combination switch ( p. 17) Stop button ( p. 16) Start button ( p. 17) Throttle grip ( p. 16) Fork part number ( p. 14) Foot brake lever ( p.

  • Page 16: Serial Numbers

    5 SERIAL NUMBERS Vehicle identification number The vehicle identification number is stamped on the right side of the steering head. 401945-10 Type label The type label is fixed to the front of the steering head. 401946-10 Engine number The engine number is stamped on the left side of the engine.

  • Page 17: Shock Absorber Article Number

    SERIAL NUMBERS 5 Shock absorber article number The shock absorber article number is stamped on the top of the shock absorber above the adjusting ring towards the engine side. 401948-10...

  • Page 18: Controls

    6 CONTROLS Clutch lever The clutch lever is fitted on the left side of the handlebar. The clutch is hydraulically operated and self-adjusting. A00985-10 Hand brake lever The hand brake lever is located on the right side of the han- dlebar.

  • Page 19: Start Button

    CONTROLS 6 Start button Start button is fitted on the right side of the handlebar. Possible states • The start button is in the basic position is pressed – In this position, the starter • The start button motor is actuated. S01195-10 Combination switch The combination switch is fitted on the left side of the handlebar.

  • Page 20: Opening Fuel Tank Filler Cap

    6 CONTROLS Opening fuel tank filler cap Danger Fire hazard Fuel is highly flammable. The fuel in the fuel tank expands when warm and can escape if overfilled. – Do not fuel the vehicle in the vicinity of open flames or lit cigarettes. –...

  • Page 21: Closing The Fuel Tank Filler Cap

    CONTROLS 6 Closing the fuel tank filler cap (FC 450 EU, FC 450 US) – Mount fuel tank filler cap and turn it clockwise until the fuel tank is tightly closed. Info Route fuel tank breather hose without kinks. V01538-11 (FX 450) –...

  • Page 22: Idle Speed Adjusting Screw

    6 CONTROLS (FX 450) The cold start button is fitted to the bottom of the throttle valve body. The electronic fuel injection system extends the injection time if the engine is cold and the ambient temperature is low. To help the engine burn the increased fuel quantity, it must be supplied with additional oxygen by pushing the cold start button.

  • Page 23: Shift Lever

    CONTROLS 6 6.12 Shift lever Shift lever is mounted on the left side of the engine. 401950-10 The gear positions can be seen in the photograph. The neutral or idle position is between the first and second gears. 401950-13 6.13 Foot brake lever Foot brake lever is located in front of the right footrest.

  • Page 24: Side Stand (Fx 450)

    6 CONTROLS 6.15 Side stand (FX 450) The side stand is located on the left of the vehicle. 401943-10 The side stand is used for parking the motorcycle. Info When you are riding, side stand must be folded up and secured with rubber strap 401944-10 6.16 Service hour counter...

  • Page 25: Preparing For Use 7

    When using the motorcycle, remember that others may be disturbed by excessive noise. – Ensure that the pre-sale inspection work has been carried out by an authorized Husqvarna Motorcycles workshop. You will receive a delivery certificate when the vehicle is handed over.

  • Page 26: Running In The Engine

    7 PREPARING FOR USE – Adjust the basic position of the hand brake lever. ( p. 85) – Adjust the basic position of the foot brake lever. p. 91) – Adjust the basic position of the shift lever. p. 118) –...

  • Page 27: Starting Power Of Lithium-Ion Batteries At Low Temperatures

    Riding at low temperatures and in snow. ( p. 27) Preparing vehicle for rides on dry sand – Mount the air filter dust cover. Air filter dust cover (79006920000) Info Observe the fitting instructions for Husqvarna Motor- cycles accessories. M01272-01...

  • Page 28: Preparing Vehicle For Rides On Wet Sand

    7 PREPARING FOR USE – Mount the air filter sand cover. Air filter sand cover (79006922000) Info Observe the fitting instructions for Husqvarna Motor- cycles accessories. M01273-01 – Clean the chain. Chain cleaner ( p. 145) – Mount the steel sprocket.

  • Page 29: Preparing Vehicle For Rides On Wet And Muddy Circuits

    PREPARING FOR USE 7 Preparing vehicle for rides on wet and muddy circuits – Mount the air filter rain cover. Air filter rain cover (79006921000) Info Observe the fitting instructions for Husqvarna Motor- cycles accessories. M01274-01 – Mount the steel sprocket. –...

  • Page 30: Riding Instructions

    8 RIDING INSTRUCTIONS Checks and maintenance measures when preparing for use Info Before every trip, check the condition of the vehicle and ensure that it is safe to operate. The vehicle must be in perfect technical condition when it is being operated. –...

  • Page 31: Activating Launch Control

    RIDING INSTRUCTIONS 8 (FC 450 EU, FC 450 US) – Remove plug-in stand H02629-10 (FX 450) – Take the motorcycle off side stand and secure the side stand with rubber strap – Shift the transmission into neutral. 401944-10 Condition Ambient temperature: < 20 °C (< 68 °F) –...

  • Page 32: Activating Traction Control

    8 RIDING INSTRUCTIONS – Press and hold the MAP and TC buttons simultaneously. The malfunction indicator lamp flashes orange rapidly. Info The launch control is deactivated automatically for a few seconds after the vehicle has started. The launch control is also deactivated in the following cases (malfunction indicator lamp no longer flashes): if the throttle valve is closed more than 1/3 of the way H02884-01...

  • Page 33: Shifting, Riding

    Danger of accidents A spongy pressure point on the front or rear brake reduces braking efficiency. – Check the brake system and do not continue riding until the problem is eliminated. (Your authorized Husqvarna Motorcycles workshop will be glad to help.) Warning Danger of accidents Moisture and dirt impair the brake system.

  • Page 34: Stopping, Parking

    8 RIDING INSTRUCTIONS – Use the braking effect of the engine on long downhill stretches. Shift back one or two gears, but do not overrev the engine when doing so. This means that significantly less braking is required and the brake sys- tem does not overheat.

  • Page 35: Refueling

    In some countries and regions, the available fuel quality and cleanliness may not be sufficient. This will result in problems with the fuel system. – Refuel only with clean fuel that meets the specified standards. (Your authorized Husqvarna Motorcycles workshop will be glad to help.)
  • Page 36 8 RIDING INSTRUCTIONS Note Environmental hazard Improper handling of fuel is a danger to the environment. – Do not allow fuel to enter the groundwater, the soil, or the sewage system. – Switch off the engine. – Open fuel tank filler cap. ( p.

  • Page 37: Service Schedule 9

    Different service intervals may apply in your country, depending on the local operating conditions. Individual service intervals and scopes may change in the course of technical developments. The most up- to-date service schedule can always be found on Husqvarna Motorcycles Dealer.net. Your authorized Husq- varna Motorcycles dealer will be glad to advise you.

  • Page 38: Recommended Work

    Final check: Check the vehicle for operating safety and take a test ride. ○ ● ● ● ● ● Read out the fault memory after the test ride using the Husqvarna Motorcycles diagnostics tool. ○ ● ● ● ● ●...
  • Page 39 SERVICE SCHEDULE 9 every 48 months every 12 months Every 100 operating hours Every 50 operating hours After 20 operating hours After 10 operating hours ● Perform major engine service including removing and installing the engine. (Change valves, valve springs, valve spring seats, and valve spring retainers. Change the connecting rod, conrod bearing and crank pin.

  • Page 40: 10 Tuning The Chassis

    – In the delivered condition, Husqvarna motorcycles are adjusted for an average rider's weight (with full protective clothing). Guideline Standard rider weight 75 …...

  • Page 41: Compression Damping Of The Shock Absorber

    The shock absorber is filled with highly compressed nitrogen. – Please follow the description provided. (Your authorized Husqvarna Motorcycles workshop will be glad to help.) Info The effect of the low-speed compression adjuster can be seen in slow to normal compression of the shock absorber.

  • Page 42: Adjusting The High-Speed Compression Damping Of The Shock Absorber

    The shock absorber is filled with highly compressed nitrogen. – Please follow the description provided. (Your authorized Husqvarna Motorcycles workshop will be glad to help.) Info The effect of the high speed compression adjuster can be seen in the fast compression of the shock absorber.

  • Page 43: Adjusting The Rebound Damping Of The Shock Absorber

    Risk of injury Parts of the shock absorber will move around if the shock absorber is detached incor- rectly. The shock absorber is filled with highly compressed nitrogen. – Please follow the description provided. (Your authorized Husqvarna Motorcycles workshop will be glad to help.) – Turn adjusting screw clockwise up to the last perceptible click.

  • Page 44: Measuring The Rear Wheel Dimension Unloaded

    10 TUNING THE CHASSIS Info Turn clockwise to increase the damping; turn counterclockwise to reduce damping when the shock absorber rebounds. 10.7 Measuring the rear wheel dimension unloaded Preparatory work – Raise the motorcycle with a lift stand. ( p. 51) Main work –...

  • Page 45: Checking The Static Sag Of The Shock Absorber

    TUNING THE CHASSIS 10 10.8 Checking the static sag of the shock absorber – Measure dimension of rear wheel unloaded. ( p. 42) – Hold the motorcycle upright with aid of an assistant. – Measure the distance again between the rear axle and mark- ing SAG on the rear fender using the sag gage.

  • Page 46: Adjusting The Spring Preload Of The Shock Absorber

    The shock absorber is filled with highly compressed nitrogen. – Please follow the description provided. (Your authorized Husqvarna Motorcycles workshop will be glad to help.) Info Note the current adjustment before changing the spring preload - e.g. measure the spring length.

  • Page 47: Adjusting The Riding Sag

    TUNING THE CHASSIS 10 – Remove the motorcycle from the lift stand. ( p. 51) 10.11 Adjusting the riding sag Preparatory work – Raise the motorcycle with a lift stand. ( p. 51) – Remove the shock absorber. p. 61) –...

  • Page 48: Checking The Basic Setting Of The Fork

    10 TUNING THE CHASSIS 10.12 Checking the basic setting of the fork Info For various reasons, no exact riding sag can be determined for the fork. – Smaller differences in the rider's weight can be compensated for by the fork air pressure. –...

  • Page 49: Adjusting The Compression Damping Of The Fork

    TUNING THE CHASSIS 10 Info This is due to the volume of the hose and not due to a defect in the fork airpump or the fork. Observe the accompanying instructions for Husq- varna Motorcycles accessories. – Adjust the air pressure as specified. Guideline Air pressure (FC 450 EU) 10.7 bar (155 psi)

  • Page 50: Adjusting The Rebound Damping Of The Fork

    10 TUNING THE CHASSIS Guideline Compression damping (FC 450 EU) Comfort 17 clicks Standard 12 clicks Sport 7 clicks Compression damping (FC 450 US) Comfort 17 clicks Standard 12 clicks Sport 7 clicks Compression damping (FX 450) Comfort 17 clicks Standard 12 clicks Sport...

  • Page 51: Handlebar Position

    TUNING THE CHASSIS 10 Info Turn clockwise to increase the damping; turn counterclockwise to reduce damping when the shock absorber rebounds. 10.16 Handlebar position The holes on the handlebar supports are placed at a distance from the center. Hole distance A 3.5 mm (0.138 in) The handlebar can be mounted in 2 different positions.
  • Page 52 10 TUNING THE CHASSIS Info Make sure the cables and wiring are positioned cor- rectly. – Position the handlebar clamp. – Mount screws , but do not tighten yet. – First bolt the handlebar clamp with screws onto the longer, higher side of the handlebar supports so that both parts touch.

  • Page 53: Service Work On The Chassis 11

    SERVICE WORK ON THE CHASSIS 11 11.1 Raising the motorcycle with a lift stand Note Material damage The vehicle may be damaged by incorrect procedure when parking. Significant damage may be caused if the vehicle rolls away or falls over. The components for parking the vehicle are designed only for the weight of the vehicle. –...

  • Page 54: Bleeding The Fork Legs

    11 SERVICE WORK ON THE CHASSIS (FX 450) – Remove the motorcycle from the lift stand. – Remove the lift stand. – To park the motorcycle, press side stand to the ground with your foot and lean the motorcycle on it. Info When you are riding, the side stand must be folded up and secured with rubber strap.

  • Page 55: Removing The Fork Protector

    SERVICE WORK ON THE CHASSIS 11 – Clean and oil the dust boots and inner fork tubes of both fork legs. Universal oil spray ( p. 146) – Press the dust boots back into the installation position. – Remove the excess oil. Finishing work –...

  • Page 56: Installing The Fork Legs

    11 SERVICE WORK ON THE CHASSIS Main work – Remove screws and take off the clamp. – Remove screws and take off the brake caliper. – Allow the brake caliper and the brake line to hang loosely to the side. Info Do not actuate the hand brake lever when the front wheel is removed.

  • Page 57: Removing The Lower Triple Clamp

    SERVICE WORK ON THE CHASSIS 11 – Position the brake caliper. Mount and tighten screws Guideline Screw, front 25 Nm (18.4 lbf ft) ® Loctite 243™ brake caliper – Position the brake line and the clamp. Mount and tighten screws S02315-11 Finishing work –...

  • Page 58: Installing The Lower Triple Clamp

    11 SERVICE WORK ON THE CHASSIS 11.10 Installing the lower triple clamp Main work – Clean the bearing and sealing elements, check for damage, and grease. High viscosity grease ( p. 145) – Insert the lower triple clamp with the steering stem. Mount upper steering head bearing.
  • Page 59 SERVICE WORK ON THE CHASSIS 11 – Tighten screws Guideline Screw, bottom triple 12 Nm (8.9 lbf ft) clamp S02319-10 – Tighten screw Guideline Screw, top steering M20x1.5 12 Nm (8.9 lbf ft) head V01544-10 – Mount and tighten screw Guideline Screw, top 20 Nm (14.8 lbf ft)

  • Page 60: Checking The Steering Head Bearing Play

    Danger of accidents Incorrect steering head bearing play impairs the handling characteristic and damages components. – Correct incorrect steering head bearing play immediately. (Your authorized Husqvarna Motorcycles workshop will be glad to help.) Info If the vehicle is operated for a lengthy period with play in the steering head bearing, the bearings and the bearing seats in the frame can become damaged over time.

  • Page 61: Lubricating The Steering Head Bearing

    SERVICE WORK ON THE CHASSIS 11 Guideline Screw, top 20 Nm (14.8 lbf ft) ® Loctite 243™ steering stem – Tighten screws Guideline Screw, top triple 17 Nm (12.5 lbf ft) clamp – Check the steering head bearing for play. ( p.

  • Page 62: Removing Front Fender

    11 SERVICE WORK ON THE CHASSIS 11.16 Removing front fender Preparatory work – Remove the start number plate. ( p. 59) Main work – Remove screws . Take off front fender. K01078-10 11.17 Installing front fender Main work – Position front fender. Mount and tighten screws Guideline Remaining screws, 10 Nm (7.4 lbf ft)

  • Page 63: Removing The Shock Absorber

    SERVICE WORK ON THE CHASSIS 11 11.18 Removing the shock absorber Preparatory work – Raise the motorcycle with a lift stand. ( p. 51) Main work – Remove the cable ties. – Remove screws with the washers. – Detach the frame protector in area and take it off.

  • Page 64: Installing The Shock Absorber

    11 SERVICE WORK ON THE CHASSIS – Remove nut and the swingarm pivot. – Push the link fork back and secure it against falling over. K01094-10 – Hold the shock absorber and remove screw K01095-10 – Remove the shock absorber carefully at the bottom. K01096-10 11.19 Installing the shock absorber...
  • Page 65 SERVICE WORK ON THE CHASSIS 11 – Mount the chain. – Connect the chain with connecting link Guideline The closed side of the chain joint lock must face in the direction of travel. S01921-10 – Position the foot brake cylinder. Push rod engages in the foot brake cylinder.

  • Page 66: Removing The Seat

    11 SERVICE WORK ON THE CHASSIS 11.20 Removing the seat Caution Danger of burns The voltage regulator gets very hot when the vehicle is driven. – Allow the voltage regulator to cool down before performing any work. Preparatory work – Remove the air filter box cover. ( p.

  • Page 67: Removing The Air Filter Box Cover

    SERVICE WORK ON THE CHASSIS 11 11.22 Removing the air filter box cover – Pull off the air filter box cover sideways in areas and take off toward the rear. V01320-10 11.23 Installing the air filter box cover (FC 450 EU, FC 450 US) –...

  • Page 68: Installing The Air Filter

    11 SERVICE WORK ON THE CHASSIS Main work – Detach retaining tab – Remove air filter with air filter support. – Remove air filter from air filter support. K01080-10 11.25 Installing the air filter Main work – Mount the clean air filter on the air filter support. –...

  • Page 69: Removing The Main Silencer

    SERVICE WORK ON THE CHASSIS 11 Main work – Wash the air filter thoroughly in special cleaning liquid and allow it to dry properly. Air filter cleaner ( p. 145) Info Only press the air filter to dry it, never wring it out. –...

  • Page 70: Installing The Main Silencer

    11 SERVICE WORK ON THE CHASSIS 11.28 Installing the main silencer – Position the main silencer. – Mount screws with the washers, but do not tighten yet. S02335-10 – Attach spring Spring hook (50305017000C1) – Tighten screws Guideline Remaining screws, 10 Nm (7.4 lbf ft) chassis K01082-11...

  • Page 71: Removing The Right Side Cover

    SERVICE WORK ON THE CHASSIS 11 Main work – Remove all the screws on the main silencer. – Take off silencer cap and O-ring – Pull glass fiber yarn filling out of the silencer cap. – Pull glass fiber yarn filling from the inner tube.

  • Page 72: Installing The Right Side Cover

    11 SERVICE WORK ON THE CHASSIS 11.31 Installing the right side cover Main work – Attach side cover with the holding lugs from below and push upward. – Engage the side cover in areas K01113-10 Finishing work – Mount the seat. ( p.
  • Page 73 SERVICE WORK ON THE CHASSIS 11 – Remove the seat. ( p. 64) – Remove the right side cover. ( p. 69) Main work (FC 450 EU, FC 450 US) – Unplug connector of the fuel pump. – Pull the fuel tank breather hose off the fuel tank lid. –...
  • Page 74 11 SERVICE WORK ON THE CHASSIS (FX 450) – Unplug connector of the fuel pump. – Pull the fuel tank breather hose off the fuel tank lid. – Clean quick release coupling thoroughly with com- pressed air. Info Under no circumstances should dirt enter into the fuel line.

  • Page 75: Installing The Fuel Tank

    SERVICE WORK ON THE CHASSIS 11 11.33 Installing the fuel tank Danger Fire hazard Fuel is highly flammable. The fuel in the fuel tank expands when warm and can escape if overfilled. – Do not fuel the vehicle in the vicinity of open flames or lit cigarettes. –...
  • Page 76 11 SERVICE WORK ON THE CHASSIS – Mount and tighten screws with the collar bushings. Guideline Screw, fuel tank 6 Nm (4.4 lbf ft) spoiler on radiator K01085-11 – Plug in connector for the fuel pump. – Remove the wash cap set. Clean the quick release cou- pling thoroughly with compressed air.

  • Page 77: Checking For Chain Dirt Accumulation

    SERVICE WORK ON THE CHASSIS 11 – Plug in connector for the fuel pump. – Remove the wash cap set. Clean the quick release cou- pling thoroughly with compressed air. Info Under no circumstances should dirt enter into the fuel line. Dirt in the fuel line clogs the injection valve! –...

  • Page 78: Checking The Chain Tension

    11 SERVICE WORK ON THE CHASSIS Info The service life of the chain depends largely on its maintenance. Preparatory work – Raise the motorcycle with a lift stand. ( p. 51) Main work – Rinse off loose dirt with a soft jet of water. –...

  • Page 79: Adjusting The Chain Tension

    SERVICE WORK ON THE CHASSIS 11 11.37 Adjusting the chain tension Warning Danger of accidents Incorrect chain tension damages components and results in accidents. If the chain is tensioned too much, the chain, engine sprocket, rear sprocket, transmission and rear wheel bearings wear more quickly. Some components may break if overloaded. If the chain is too loose, the chain may fall off the engine sprocket or the rear sprocket.

  • Page 80: Checking The Chain, Rear Sprocket, Engine Sprocket, And Chain Guide

    11 SERVICE WORK ON THE CHASSIS 11.38 Checking the chain, rear sprocket, engine sprocket, and chain guide Preparatory work – Raise the motorcycle with a lift stand. ( p. 51) Main work – Shift the transmission to the neutral position. –...
  • Page 81 SERVICE WORK ON THE CHASSIS 11 – Check the chain sliding guard for wear. » If the lower edge of the chain pins is in line with, or below, the chain sliding guard: – Change the chain sliding guard. – Check that the chain sliding guard is firmly seated.

  • Page 82: Checking The Frame

    If the link fork exhibits damage, cracking, or deformation: – Change the link fork. Info Always replace a damaged link fork. Repair of the link fork is not authorized by Husqvarna Motorcycles. K01115-01 11.41 Checking the throttle cable routing Preparatory work –...

  • Page 83: Checking The Rubber Grips

    SERVICE WORK ON THE CHASSIS 11 Main work – Check the throttle cable routing. Both throttle cables must be routed, side by side, on the back of the handlebars and above the fuel tank bracket, to the throttle valve body. Both throttle cables must be secured behind the rubber strap of the fuel tank support.

  • Page 84: Adjusting The Basic Position Of The Clutch Lever

    11 SERVICE WORK ON THE CHASSIS 11.43 Adjusting the basic position of the clutch lever – Adjust the basic position of the clutch lever to your hand size by turning adjusting screw Info When the adjusting screw is turned counterclockwise, the clutch lever moves away from the handlebar.

  • Page 85: Changing The Hydraulic Clutch Fluid

    SERVICE WORK ON THE CHASSIS 11 Info Clean up overflowed or spilled brake fluid immediately with water. 11.45 Changing the hydraulic clutch fluid Warning Skin irritation Brake fluid causes skin irritation. – Keep brake fluid out of the reach of children. –...
  • Page 86 11 SERVICE WORK ON THE CHASSIS – Only loosen bleeder screw on the clutch slave cylin- der until filling is possible. Info Use water to immediately clean up any brake fluid that has overflowed or spilled. Avoid contact between brake fluid and painted parts.

  • Page 87: Brake System 12

    Do not make any adjustments while riding. 12.3 Checking the brake discs Warning Danger of accidents Worn-out brake discs reduce the braking effect. – Make sure that worn-out brake discs are replaced immediately. (Your authorized Husqvarna Motor- cycles workshop will be glad to help.)

  • Page 88: Checking The Front Brake Fluid Level

    Danger of accidents Old brake fluid reduces the braking effect. – Make sure that brake fluid for the front and rear brake is changed in accordance with the service schedule. (Your authorized Husqvarna Motorcycles workshop will be glad to help.) Preparatory work –...

  • Page 89: Adding Front Brake Fluid

    Danger of accidents Old brake fluid reduces the braking effect. – Make sure that brake fluid for the front and rear brake is changed in accordance with the service schedule. (Your authorized Husqvarna Motorcycles workshop will be glad to help.) Note Environmental hazard Hazardous substances cause environmental damage.

  • Page 90: Checking The Front Brake Linings

    Checking the front brake linings Warning Danger of accidents Worn-out brake linings reduce the braking effect. – Ensure that worn-out brake linings are replaced immediately. (Your authorized Husqvarna Motorcy- cles workshop will be glad to help.) – Check the brake linings for minimum thickness ≥...
  • Page 91 – Make sure that brake fluid for the front and rear brake is changed in accordance with the service schedule. (Your authorized Husqvarna Motorcycles workshop will be glad to help.) Warning Danger of accidents Oil or grease on the brake discs reduces the braking effect.
  • Page 92 12 BRAKE SYSTEM – Remove cotter pins , remove pin , and remove the brake linings. – Clean the brake caliper and the brake caliper bracket. – Check that spring plate in the brake caliper and brake pad sliding plate in the brake caliper bracket are seated properly.

  • Page 93: Checking The Free Travel Of Foot Brake Lever

    BRAKE SYSTEM 12 12.8 Checking the free travel of foot brake lever Warning Danger of accidents The brake system fails in the event of overheating. If there is no free travel on the foot brake lever, pressure builds up in the brake system on the rear brake.

  • Page 94: Checking The Rear Brake Fluid Level

    Danger of accidents Old brake fluid reduces the braking effect. – Make sure that brake fluid for the front and rear brake is changed in accordance with the service schedule. (Your authorized Husqvarna Motorcycles workshop will be glad to help.) Preparatory work –...
  • Page 95 Danger of accidents Old brake fluid reduces the braking effect. – Make sure that brake fluid for the front and rear brake is changed in accordance with the service schedule. (Your authorized Husqvarna Motorcycles workshop will be glad to help.) Note Environmental hazard Hazardous substances cause environmental damage.

  • Page 96: Checking The Brake Linings Of The Rear Brake

    Checking the brake linings of the rear brake Warning Danger of accidents Worn-out brake linings reduce the braking effect. – Ensure that worn-out brake linings are replaced immediately. (Your authorized Husqvarna Motorcy- cles workshop will be glad to help.) – Check the brake linings for minimum thickness ≥...
  • Page 97 BRAKE SYSTEM 12 Info Never use DOT 5 brake fluid. It is silicone-based and purple in color. Oil seals and brake lines are not designed for DOT 5 brake fluid. Avoid contact between brake fluid and painted parts. Brake fluid corrodes paint. Only use clean brake fluid from a sealed container.
  • Page 98 12 BRAKE SYSTEM – Correct brake fluid level to marking Brake fluid DOT 4 / DOT 5.1 ( p. 143) – Mount and tighten screw cap with membrane and the O-ring. Info Use water to immediately clean up any brake fluid that has overflowed or spilled.

  • Page 99: Wheels, Tires 13

    WHEELS, TIRES 13 13.1 Removing the front wheel Preparatory work – Raise the motorcycle with a lift stand. ( p. 51) Main work – Manually press the brake caliper toward the brake disc to push back the brake pistons. Info Make sure that you do not press the brake caliper against the spokes when pushing back the brake pis- tons.

  • Page 100: Installing The Front Wheel

    13 WHEELS, TIRES 13.2 Installing the front wheel Warning Danger of accidents Oil or grease on the brake discs reduces the braking effect. – Always keep the brake discs free of oil and grease. – Clean the brake discs with brake cleaner when necessary. –...

  • Page 101: Installing The Rear Wheel

    WHEELS, TIRES 13 Main work – Manually press the brake caliper toward the brake disc to push back the brake piston. Info Make sure that you do not press the brake caliper against the spokes when pushing back the brake pis- ton.
  • Page 102 13 WHEELS, TIRES Main work – Check the wheel bearing for damage and wear. » If the wheel bearing is damaged or worn: – Change the rear wheel bearing. – Clean and grease shaft seal rings and contact surfaces of the spacers. Long-life grease ( p.

  • Page 103: Checking The Tire Condition

    Checking the tire condition Info Only mount tires approved and/or recommended by Husqvarna Motorcycles. Other tires could have a negative effect on handling characteristics. The type, condition, and pressure of the tires all have a major impact on the handling characteristic of the motorcycle.

  • Page 104: Checking The Spoke Tension

    Other spokes will become looser as a result. – Check spoke tension regularly, and in particular on a new vehicle. (Your authorized Husqvarna Motorcycles workshop will be glad to help.) –...

  • Page 105: Electrical System 14

    ELECTRICAL SYSTEM 14 14.1 Removing the 12-V battery Caution Danger of burns The voltage regulator gets very hot when the vehicle is driven. – Allow the voltage regulator to cool down before performing any work. Note Environmental hazard 12 V batteries contain environmentally hazardous materials. –...

  • Page 106: Installing The 12-V Battery

    14 ELECTRICAL SYSTEM 14.2 Installing the 12-V battery Main work – Insert the 12-V battery into the battery compartment with the terminals facing forward and secure with holding bracket 12 V battery (HJTZ5S-FP-C) ( p. 136) – Mount and tighten screw Guideline Remaining screws, 10 Nm (7.4 lbf ft)
  • Page 107 It is also impossible to over- charge the 12-V battery with these battery chargers. The charging time may be longer at low temperatures. These battery chargers are only suitable for lithium iron phosphate batteries. Observe the accompanying instructions for Husqvarna Motorcycles accessories.

  • Page 108: Changing Main Fuse

    14 ELECTRICAL SYSTEM Info Never remove cover – Switch off the battery charger after charging and dis- connect from the 12-V battery. Finishing work – Install the 12-V battery. p. 104) – Mount the seat. ( p. 64) – Install the air filter box cover. ( p.

  • Page 109: Diagnostics Connector

    ELECTRICAL SYSTEM 14 – Take off protection caps – Remove faulty main fuse Info A faulty fuse has a burned-out fuse wire A spare fuse is located in the starter relay. – Insert a new main fuse. Fuse (58011109110) ( p.

  • Page 110: 15 Cooling System

    15 COOLING SYSTEM 15.1 Cooling system Water pump in the engine circulates the coolant. The pressure resulting from the warming of the cooling system is regulated by a valve in radiator cap . This ensures that operat- ing the vehicle at the specified coolant temperature will not result in a risk of malfunctions.

  • Page 111: Checking The Coolant Level

    COOLING SYSTEM 15 – Stand the motorcycle upright on a horizontal surface. – Remove the radiator cap. – Check the antifreeze in the coolant. −25 … −45 °C (−13 … −49 °F) » If the antifreeze in the coolant does not match the speci- fied value: –...

  • Page 112: Draining The Coolant

    15 COOLING SYSTEM 15.4 Draining the coolant Warning Danger of scalding During motorcycle operation, the coolant gets very hot and is under pressure. – Do not open the radiator, the radiator hoses or other cooling system components if the engine or the cooling system are at operating temperature.

  • Page 113: Changing The Coolant

    COOLING SYSTEM 15 Main work – Make sure that screw is tightened. – Position the motorcycle upright. – Pour coolant in up to measurement above the radiator fins. Guideline 10 mm (0.39 in) Distance above the radi- ator fins V01327-10 Coolant 1.20 l Coolant (...
  • Page 114 15 COOLING SYSTEM – Mount and tighten screw with a new seal ring. Guideline Screw, water pump 10 Nm (7.4 lbf ft) cover – Pour coolant in up to level above the radiator fins. Guideline 10 mm (0.39 in) Distance above the radi- ator fins V01327-10...

  • Page 115: Tuning The Engine 16

    TUNING THE ENGINE 16 16.1 Checking the play in the throttle cable – Check the throttle grip for smooth operation. – Move the handlebar to the straight-ahead position. Turn the throttle grip back and forth slightly and determine the play in throttle cable Play in throttle cable 3 …...
  • Page 116 16 TUNING THE ENGINE Main work (FC 450 EU, FC 450 US) – Move the handlebar to the straight-ahead position. – Push back sleeve – Loosen nut – Turn adjusting screw in as far as possible. – Loosen nut – Push cold start button all the way to the stop.

  • Page 117: Adjusting The Characteristic Map Of The Throttle Response

    TUNING THE ENGINE 16 16.3 Adjusting the characteristic map of the throttle response Info On the throttle grip, the characteristic map of the throttle response is changed by changing the guide plate. A guide plate with a different characteristic map is supplied. Main work –...

  • Page 118: Changing The Mapping

    Adjusting the idle speed Warning Danger of accidents The engine may go out spontaneously if the idle speed is set too low. – Set the idle speed to the specified value. (Your authorized Husqvarna Motorcycles workshop will be glad to help.)

  • Page 119: Teaching The Throttle Valve Position

    TUNING THE ENGINE 16 – Run the engine until warm. The cold start button is deactivated – The cold start but- ton is in its basic position. ( p. 20) Danger Danger of poisoning Exhaust gases are toxic and inhaling them may result in unconsciousness and death.

  • Page 120: Checking The Basic Position Of The Shift Lever

    16 TUNING THE ENGINE 16.7 Checking the basic position of the shift lever Info When driving, the shift lever must not touch the rider's boot when in the basic position. When the shift lever keeps touching the boot, the transmission will be subject to an excessive load. –...

  • Page 121: Service Work On The Engine 17

    SERVICE WORK ON THE ENGINE 17 17.1 Changing the fuel screen Danger Fire hazard Fuel is highly flammable. The fuel in the fuel tank expands when warm and can escape if overfilled. – Do not fuel the vehicle in the vicinity of open flames or lit cigarettes. –...
  • Page 122 17 SERVICE WORK ON THE ENGINE Danger Danger of poisoning Exhaust gases are toxic and inhaling them may result in unconsciousness and death. – Always make sure there is sufficient ventila- tion when running the engine. – Use effective exhaust extraction when starting or running the engine in an enclosed space.

  • Page 123: Checking The Engine Oil Level

    SERVICE WORK ON THE ENGINE 17 17.2 Checking the engine oil level Info The engine oil level can be checked when the engine is cold or warm. Preparatory work – Stand the motorcycle upright on a horizontal surface. Condition The engine is cold. –...
  • Page 124 17 SERVICE WORK ON THE ENGINE Main work – Position an appropriate container under the engine. – Remove oil drain plug with the magnet and seal ring. K01068-10 – Remove screw plug with the short oil screen and the O- rings.
  • Page 125 SERVICE WORK ON THE ENGINE 17 – Mount and tighten screw plug with the O-ring. Guideline Screw plug, oil M20x1.5 15 Nm (11.1 lbf ft) screen – Mount and tighten oil drain plug with the magnet and a new seal ring. Guideline Oil drain plug with M12x1.5...

  • Page 126: Adding Engine Oil

    143) Info For optimal performance of the engine oil, do not mix different types of engine oil. 401955-10 Husqvarna Motorcycles recommends changing the engine oil. – Mount and tighten the filler plug together with the O-ring. Danger Danger of poisoning Exhaust gases are toxic and inhaling them may result in unconsciousness and death.

  • Page 127: Cleaning, Care 18

    CLEANING, CARE 18 18.1 Cleaning the motorcycle Note Material damage Components become damaged or destroyed if a pressure cleaner is used incorrectly. The high pressure forces water into the electrical components, connectors, throttle cables, and bearings, etc. Pressure which is too high causes malfunctions and destroys components. –...
  • Page 128 18 CLEANING, CARE – Push back the protection caps of the handlebar controls to allow any water that has penetrated to evaporate. – After the motorcycle has cooled down, lubricate all moving parts and pivot points. – Clean the chain. ( p.

  • Page 129: Storage 19

    – Store the vehicle in a dry location that is not subject to large fluctuations in temperature. Info Husqvarna Motorcycles recommends raising the motorcycle. – Raise the motorcycle with a lift stand. ( p. 51) –...

  • Page 130: Preparing For Use After Storage

    19 STORAGE Info Do not use non-porous materials since they prevent humidity from escaping, thus causing corrosion. Avoid running the engine for a short time only. Since the engine cannot warm up properly, the water vapor produced during combustion condenses and causes valves and exhaust system to rust.

  • Page 131: Troubleshooting 20

    – Check the electrical system. – Malfunction in the electronic Read out the fault memory using the fuel injection Husqvarna Motorcycles diagnostics tool. – Engine does not speed up Malfunction in the electronic Read out the fault memory using the...
  • Page 132 – Read out the fault memory using the Husqvarna Motorcycles diagnostics tool. – High oil consumption Engine vent hose bent Route the vent hose without bends or change it if necessary.

  • Page 133: Blink Code 21

    BLINK CODE 21 Blink code for malfunc- tion indicator lamp 02a Malfunction indicator lamp flashes 2x per second Error level condition Teaching of throttle valve position required Blink code for malfunc- tion indicator lamp 02 Malfunction indicator lamp flashes 2x short Crankshaft speed sensor –...
  • Page 134 21 BLINK CODE Blink code for malfunc- tion indicator lamp 33 Malfunction indicator lamp flashes 3x long, 3x short Injection valve cylinder 1 – circuit fault Error level condition Blink code for malfunc- tion indicator lamp 37 Malfunction indicator lamp flashes 3x long, 7x short Ignition coil –...

  • Page 135: Technical Data 22

    TECHNICAL DATA 22 22.1 Engine Design 1-cylinder 4-stroke engine, water-cooled Displacement 449.9 cm³ (27.455 cu in) Stroke 63.4 mm (2.496 in) Bore 95 mm (3.74 in) Compression ratio 12.75:1 Idle speed 2,250 … 2,350 rpm Control OHC, 4 valves controlled via rocker arm Valve diameter, intake 40 mm (1.57 in) Valve diameter, exhaust...

  • Page 136: Engine Tightening Torques

    22 TECHNICAL DATA 22.2 Engine tightening torques Screw, oil nozzle for piston cool- 2.5 Nm (1.84 lbf ft) ® Loctite 243™ Crankshaft speed sensor screw 6 Nm (4.4 lbf ft) ® Loctite 243™ and cable retainer Oil nozzle for clutch lubrication 2.5 Nm (1.84 lbf ft) Oil nozzle for piston cooling 2.5 Nm (1.84 lbf ft)

  • Page 137: Capacities

    TECHNICAL DATA 22 Oil nozzle for conrod bearing M6x0.75 2.5 Nm (1.84 lbf ft) lubrication Plug, oil channel 9 Nm (6.6 lbf ft) ® Loctite 243™ Screw, rocker arm bearing M7x1 15 Nm (11.1 lbf ft) Crankshaft clamp screw plug 10 Nm (7.4 lbf ft) Plug, timing chain tensioner 8 Nm (5.9 lbf ft)

  • Page 138: Chassis

    22 TECHNICAL DATA 22.4 Chassis Frame Central tube frame made of chrome molybdenum steel tubing Fork (FC 450 EU, FC 450 US) WP XACT 5448 Fork (FX 450) WP XACT 5448 Suspension travel front 300 mm (11.81 in) rear 293 mm (11.54 in) Fork offset 22 mm (0.87 in) Shock absorber (FC 450 EU, FC 450 US)

  • Page 139: Tires

    110/100 - 18 64M TT Dunlop GEOMAX AT81F Dunlop GEOMAX AT81 The tires specified represent one of the possible series production tires. Additional information is available in the Service section under: www.husqvarna-motorcycles.com 22.7 Fork 22.7.1 FC 450 EU Fork article number 34.15.8U.09...

  • Page 140: Shock Absorber

    22 TECHNICAL DATA Air pressure 10.7 bar (155 psi) Fork length 940 mm (37.01 in) + 10 + 0.34 Oil capacity external mechanism ml (7.78 fl. oz.) Fork oil (SAE 4) (48601166S1) − 50 − 1.69 right p. 144) + 10 + 0.34 Oil capacity external mechanism ml (7.78...
  • Page 141 TECHNICAL DATA 22 Sport 1 turn Rebound damping Comfort 17 clicks Standard 15 clicks Sport 13 clicks Spring preload 8 mm (0.31 in) Spring rate Weight of rider: 65 … 75 kg (143 … 165 lb.) 39 N/mm (223 lb/in) Weight of rider: 75 …...

  • Page 142: Chassis Tightening Torques

    22 TECHNICAL DATA Shock absorber oil Shock absorber fluid (SAE 2.5) (50180751S1) ( p. 144) 22.8.3 FX 450 Shock absorber article number 18.18.7U.79 Shock absorber WP XACT 5750 Lowspeed compression damping Comfort 17 clicks Standard 15 clicks Sport 13 clicks Highspeed compression damping Comfort 2.5 turns...
  • Page 143 TECHNICAL DATA 22 Spoke nipple, front wheel M4.5 6 Nm (4.4 lbf ft) Spoke nipple, rear wheel M4.5 6 Nm (4.4 lbf ft) Remaining nuts, chassis 5 Nm (3.7 lbf ft) Remaining screws, chassis 5 Nm (3.7 lbf ft) Screw, battery terminal 2.5 Nm (1.84 lbf ft) Screw, frame protector 3 Nm (2.2 lbf ft)
  • Page 144 22 TECHNICAL DATA Screw, top steering stem 20 Nm (14.8 lbf ft) ® Loctite 243™ Screw, top triple clamp 17 Nm (12.5 lbf ft) Engine carrying screw 60 Nm (44.3 lbf ft) Remaining nuts, chassis 45 Nm (33.2 lbf ft) Remaining screws, chassis 45 Nm (33.2 lbf ft) Screw, bottom shock absorber...

  • Page 145: Substances 23

    SUBSTANCES 23 Brake fluid DOT 4 / DOT 5.1 Standard/classification – Guideline – Use only brake fluid that complies with the specified standard (see specifications on the container) and that exhibits the corresponding properties. Recommended supplier Castrol – REACT PERFORMANCE DOT 4 ®...
  • Page 146 23 SUBSTANCES Fork oil (SAE 4) (48601166S1) Standard/classification – SAE ( p. 147) (SAE 4) Guideline – Use only oils that comply with the specified standards (see specifications on the container) and that exhibit the corresponding properties. Shock absorber fluid (SAE 2.5) (50180751S1) Standard/classification –...

  • Page 147: Auxiliary Substances 24

    AUXILIARY SUBSTANCES 24 Air filter cleaner Recommended supplier ® MOTOREX – Racing Bio Dirt Remover Chain cleaner Recommended supplier ® MOTOREX – Chain Clean Fuel additive Recommended supplier ® MOTOREX – Fuel Stabilizer High viscosity grease Recommended supplier ® – LGHB 2 Long-life grease Recommended supplier...
  • Page 148 24 AUXILIARY SUBSTANCES Silicone spray Recommended supplier ® MOTOREX – Silicone Spray Special cleaner for glossy and matte paint finishes, metal and plastic surfaces Recommended supplier ® MOTOREX – Quick Cleaner Special grease (00062010053) Recommended supplier ® Klüber Lubrication – KLÜBERFOOD NH1 34‑401 Universal oil spray Recommended supplier...

  • Page 149: Standards 25

    STANDARDS 25 JASO T903 MA2 Different technical development directions required a separate specification for motorcycles – the JASO T903 MA2 standard. Earlier, engine oils from the automobile industry were used for motorcycles because there was no separate motorcycle specification. Whereas long service intervals are demanded for automobile engines, the focus for motorcycle engines is on high performance at high engine speeds.

  • Page 150: 26 Index Of Special Terms

    26 INDEX OF SPECIAL TERMS Launch control Vehicles electronics functions for achieving the best possible acceleration from a standing position On-board diagnosis Vehicle system, which monitors the specified param- eters of the vehicle electronics...

  • Page 151: List Of Abbreviations 27

    LIST OF ABBREVIATIONS 27 Art. no. Article number circa compare e.g. for example etc. et cetera i.a. inter alia number poss. possibly...

  • Page 152: 28 List Of Symbols

    28 LIST OF SYMBOLS 28.1 Yellow and orange symbols Yellow and orange symbols indicate an error condition that requires prompt intervention. Active driving aids are also represented by yellow or orange symbols. Malfunction indicator lamp lights up/flashes orange – The OBD has detected a malfunction in the vehicle electronics.

  • Page 153: Index

    INDEX INDEX Chain guide checking ......78 12-V battery Chain tension charging ......104 adjusting .
  • Page 154 INDEX Figures ......10 Idle speed Foot brake lever ..... . 21 adjusting .
  • Page 155 INDEX Preparing for use Spoke tension advice on preparing for first use ..23 checking ......102 after storage .
  • Page 156 INDEX rear right ......13 Work rules ......8...
  • Page 157 *3402535en* 3402535en 04/2021 Husqvarna Motorcycles GmbH Stallhofnerstraße 3 5230 Mattighofen Austria Photo: Mitterbauer/KISKA, www.husqvarna-motorcycles.com Husqvarna Motorcycles GmbH...

This manual is also suitable for:

Fx 450 2022Fc 450 eu 2022Fc 450 us 2022F2401v1F2475v2F2301v6

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