Husqvarna FS 450 2021 Owner's Manual

During the first 1-2 hours of riding, avoid full-throttle operation and vary the engine speed frequently. Gradually increase the engine load after this period.
Check the battery charge, ensure the fuel system is functioning, and inspect the spark plug for wear or fouling. Consider examining the kill switch and side stand switch for proper operation.
Husqvarna recommends using a high-quality, fully synthetic 10W-50 4-stroke motorcycle oil for optimal performance and protection.
Clean the air filter after every 5 hours of use in dusty conditions. Replace it when it shows signs of excessive wear or damage.
The recommended tire pressure for the FS 450 is 1.0 to 1.2 bar (14.5 to 17.4 psi) for the front tire and 1.2 to 1.4 bar (17.4 to 20.3 psi) for the rear tire. Always adjust based on riding conditions.
Refer to the owner’s manual for baseline settings. Adjust the compression and rebound damping according to your weight and riding style. Test ride and tweak settings as necessary for comfort and control.
Valve clearance should be checked initially after the first 10 hours of use and subsequently every 30 hours. Adjust as necessary to maintain optimal engine performance.
Maintain regular service intervals, keep the air filter clean, ensure proper tire pressure, and avoid excessive idling or aggressive riding to optimize fuel consumption.
Common causes include low coolant levels, a malfunctioning thermostat, or blocked radiator fins. Ensure regular coolant checks and clean the radiator to prevent overheating issues.
Clean the motorcycle thoroughly, stabilize the fuel, lubricate moving parts, disconnect the battery, and store in a dry, temperature-controlled environment. Use a motorcycle cover to protect it from dust and debris.