Husqvarna TC 125 2019 User Manual (English)

Questions and Answers:

M
Mark ClarkeAug 17, 2025
What to do if Husqvarna TC 125 2019 engine has too little power?
- A
  Angela MillerAug 17, 2025
  If your Husqvarna Motorcycle engine has too little power, the issue might stem from several causes. Check for an interrupted fuel feed by inspecting the fuel tank breather and cleaning the fuel tap. Also, a very dirty air filter can restrict performance, so clean the air filter and air filter box. Inspect the exhaust system for leaks or deformation, and consider changing the glass fiber yarn filling in the main silencer. Other possibilities include a fault in the ignition system, or damage to the diaphragm or reed valve housing, so check these components as well.
C
Courtney AllenAug 21, 2025
What to do if Husqvarna Motorcycle engine stalls or is popping into the carburetor?
- W
  wayneharrisAug 21, 2025
  If your Husqvarna Motorcycle engine stalls or pops into the carburetor, first ensure that the fuel tap is in the ON position and that you have sufficient fuel. Also, check the intake flange and carburetor for tightness to rule out bad air intake. Another potential cause is a loose or oxidized connector or ignition coil; clean the connector and treat it with contact spray.
C
Christina DudleyAug 25, 2025
Why Husqvarna Motorcycle engine has no idle?
- C
  Curtis JacksonAug 25, 2025
  If your Husqvarna Motorcycle engine won't idle, the idling jet might be blocked, so check/set the carburetor components. Alternatively, the adjusting screws on the carburetor could be distorted; in this case, adjust the idle speed of the carburetor. A defective spark plug or a defective ignition system (check the ignition coil and the spark plug connector) can also cause idling problems, so inspect these components as well. Consider changing the spark plug.
K
kathrynmarshallAug 27, 2025
What causes Husqvarna TC 125 2019 Motorcycle engine to overheat?
- B
  Brandon WalkerAug 27, 2025
  An overheating Husqvarna Motorcycle engine can be caused by several factors. Check for coolant leakage and ensure the coolant level is adequate. Insufficient air stream can also lead to overheating, so switch off the engine when stationary. Radiator fins that are very dirty can impede cooling, so clean them. Foam formation in the cooling system is another potential cause; drain and refill the coolant. Finally, inspect the cylinder head and cylinder head gasket for damage, and check the radiator hose for bends.
M
Michelle LeeAug 30, 2025
Why Husqvarna TC 125 2019 Motorcycle engine does not speed up?
- T
  Tracy PerezAug 31, 2025
  If your Husqvarna Motorcycle engine isn't speeding up properly, the carburetor might be running over because the float needle is dirty or worn, so check/set the carburetor components. Loose carburetor jets can also cause this issue, so check/set the carburetor components. Additionally, a fault in the ignition system could be to blame, so check the ignition system.
D
Donna ShawSep 3, 2025
What does it mean when there is white smoke emission (steam in exhaust gas) in Husqvarna Motorcycle?
- W
  woodstimothySep 3, 2025
  White smoke (steam) in the exhaust gas of your Husqvarna Motorcycle often indicates a damaged cylinder head or cylinder head gasket. Therefore, check the cylinder head and cylinder head gasket.
P
Paul MoyerSep 6, 2025
Why is gear oil exiting at the vent hose of my Husqvarna TC 125 2019 Motorcycle?
- M
  Mary DawsonSep 6, 2025
  If gear oil is coming out of the vent hose on your Husqvarna Motorcycle, it's likely because too much gear oil was added. Check the gear oil level.
P
Patrick PittmanSep 9, 2025
What causes water in the gear oil of a Husqvarna TC 125 2019?
- D
  Debbie ShawSep 9, 2025
  If you find water in the gear oil of your Husqvarna Motorcycle, it could be due to a damaged shaft seal ring or water pump. Check the shaft seal ring and water pump.

Husqvarna TC 125 2019 Specifications

General

Engine Type	Single-cylinder, 2-stroke
Displacement	124.8 cc
Transmission	6-speed
Front Brake	260 mm disc
Rear Brake	220 mm disc
Starter	Kickstarter
Bore x Stroke	54 mm x 54.5 mm
Front Suspension	WP AER 48 USD fork
Rear Suspension	WP shock absorber
Fuel Tank Capacity	7.5 L
Clutch	Wet, multi-disc
Frame	Chromium Molybdenum steel
Front Suspension Travel	300 mm
Rear Suspension Travel	300 mm

Summary

Means of Representation

Symbols and Formats Used

Explains the meaning of symbols and typographical formats used in the manual.

Safety Advice

General Safety Information and Definitions

Covers intended use, misuse, safety advice, and degrees of risk symbols.

Operational and Tampering Safety

Details safe operation, burn hazards, rider fitness, and tampering warnings.

Protective Gear and Workshop Practices

Emphasizes protective gear, work rules, environmental responsibility, and manual importance.

Important Notes

Warranty, Fluids, and Spare Parts

Covers warranty conditions, correct fluids, approved spare parts, and accessories.

Service and Component Wear Considerations

Explains the impact of service intervals and difficult conditions on component wear.

View of Vehicle

Front Left Vehicle View

Identifies key components visible from the front left side of the vehicle.

Rear Right Vehicle View

Identifies key components visible from the rear right side of the vehicle.

Serial Numbers

Locating Key Vehicle Identification Numbers

Details the locations of chassis number, type label, engine number, and fork part number.

Shock Absorber Article Number Location

Specifies the location of the shock absorber article number for identification.

Controls

Handlebar and Lever Controls

Covers clutch lever, hand brake lever, throttle grip, and kill switch operation.

Engine and Riding Controls

Explains fuel tap, choke, shift lever, kick starter, and foot brake lever functions.

Parking and Monitoring Devices

Details the plug-in stand, service hour counter, and filler cap operations.

Preparing for Use

Initial Use and Rider Preparation

Provides advice for first use, rider fitness, protective gear, and handling familiarity.

Engine Break-In and Difficult Conditions

Outlines engine break-in procedures and preparations for various challenging operating environments.

Riding Instructions

Pre-Ride Checks and Starting Procedures

Lists essential pre-ride checks and guides on safely starting the vehicle.

Riding, Shifting, and Braking Techniques

Explains proper riding, shifting, braking, stopping, and parking techniques.

Transporting and Refueling Safety

Covers safe transportation methods and detailed refueling procedures with warnings.

Service Schedule

Required Service Tasks and Intervals

Details mandatory service tasks based on operating hours, races, and time intervals.

Recommended Maintenance and Checks

Lists recommended service tasks like fluid changes and component servicing for optimal performance.

Tuning the Chassis

Basic Chassis and Rider Weight Setup

Explains how to adjust basic chassis settings to match the rider's weight for optimal handling.

Fork Adjustment and Air Pressure

Covers air suspension, compression, rebound damping, and air pressure adjustments for the front fork.

Shock Absorber Damping and Sag Adjustment

Details adjustments for compression, rebound damping, spring preload, and sag measurements.

Handlebar Position Adjustment

Guides on checking and adjusting the handlebar position for rider comfort.

Service Work on the Chassis

Motorcycle Lifting and Fork Leg Service

Covers raising the motorcycle, fork leg bleeding, and dust boot cleaning.

Fork Protector and Triple Clamp Service

Details removing and installing fork protectors and servicing the lower triple clamp.

Steering Head Bearing and Fender Service

Explains checking/adjusting steering head bearing play and servicing fenders/start plates.

Shock Absorber, Seat, and Air Filter Service

Details shock absorber, seat, and air filter box cover removal/installation and servicing.

Chain, Sprocket, and Guide Maintenance

Covers checking, cleaning, and adjusting chain tension, and checking sprockets and guides.

Fuel Tank and Clutch System Maintenance

Covers fuel tank removal/installation and clutch system maintenance including fluid changes.

Brake System

Hand Brake Lever and Disc Checks

Details checking free travel, adjusting position of hand brake lever, and checking brake discs.

Front Brake Fluid and Linings Service

Covers checking and adding front brake fluid, and checking/changing front brake linings.

Foot Brake Lever and Rear Brake Service

Details foot brake lever operation and checking/adding rear brake fluid and linings.

Wheels, Tires

Front Wheel Removal and Installation

Details removing and installing the front wheel, including brake caliper and spindle procedures.

Rear Wheel Removal and Installation

Covers removing and installing the rear wheel, including chain and sprocket alignment.

Tire Condition, Pressure, and Spoke Tension

Advises on checking tire condition, pressure, and spoke tension for safety and wheel integrity.

Cooling System

Cooling System Operation and Radiator Covers

Explains system operation and the use of radiator covers based on ambient temperature.

Coolant Level and Antifreeze Checks

Guides on checking coolant level, antifreeze protection, and draining/refilling the system.

Tuning the Engine

Throttle Cable and Carburetor Adjustment

Covers checking and adjusting throttle cable play and carburetor settings for idle and running.

Carburetor Tuning and Jetting

Provides detailed guidance on carburetor tuning for various conditions and altitudes.

Ignition Timing Map and Shift Lever

Details switching ignition timing maps and adjusting the basic position of the shift lever.

Service Work on the Engine

Gear Oil Level and Change Procedures

Details procedures for checking and changing the engine's gear oil, including safety precautions.

Cleaning, Care

Motorcycle Cleaning and Preservation

Provides instructions for safely cleaning the motorcycle and preserving its appearance.

Storage

Preparing for Long-Term Storage

Outlines steps for preparing the motorcycle for long-term storage, including fluid checks and fuel additives.

Preparing for Use After Storage

Details the necessary checks and measures before using the motorcycle after a storage period.

Troubleshooting

Technical Data

Engine and Carburetor Specifications

Lists detailed technical specifications for the engine and carburetor tuning data.

Chassis, Suspension, and Wheel Data

Provides data on frame, suspension travel, fork, shock absorber, wheelbase, and wheel dimensions.

Torque Specifications and Capacities

Lists essential tightening torques for various components and fluid capacities for oil and coolant.

Substances

Recommended Fluids and Lubricants

Lists recommended brake fluids, coolant, engine oils, and fork/shock absorber fluids.

Auxiliary Substances

Cleaning and Maintenance Products List

Lists recommended products for air filter cleaning, chain cleaning, and general motorcycle cleaning.

Standards

Industry Standards Explanation

Explains classifications like JASO T903 MA2, SAE, and JASO FD for oils and fluids.

List of Abbreviations

Glossary of Abbreviations

Provides a list of common abbreviations and their meanings found in the manual.

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