Air Filter Cleaning & Replacement Guide for 2019 Husqvarna FX350
Shop parts for a 2019 Husqvarna FX350 Dirt Bike.
Preserving engine performance and longevity on your 2019 Husqvarna FX350 depends on diligent air filter care. A well-maintained filter protects your motor from dust, sand, and debris–essential for optimal horsepower on the trails or track. This MotoSport.com exclusive guide walks you through proper cleaning, maintenance, and replacement techniques unique to the FX350, while highlighting points every owner should know.
Why Air Filter Maintenance Matters for the FX350
The 2019 FX350 sports a high-output engine that thrives on steady airflow but is vulnerable to contaminants. Its airbox is designed for easy filter access, but improper filter care can lead to restricted airflow, poor throttle response, and premature engine wear. The FX350's filter is a reusable foam type, demanding routine attention especially in dusty or extended-ride conditions.
Step-by-Step Air Filter Cleaning Process
- Remove the Seat and Filter: Use the quick-release seat latch to access the airbox on the right side of your FX350. Carefully release the filter cage tabs and lift the foam filter out, ensuring no dirt falls into the intake boot.
- Pre-Clean the Area: Wipe down the airbox with a clean, damp rag to prevent dust from contaminating the fresh filter during reinstallation. Never use a shop vacuum, as static sparks pose a fire risk near fuel vapors.
- Knock Off Loose Dirt: Gently tap the filter to dislodge excess debris. Avoid squeezing or wringing the foam, which can risk tearing or deformation.
- Apply Air Filter Cleaner: Spray the filter thoroughly with a manufacturer-recommended foam filter cleaner, massaging it gently to dissolve oil and embedded dirt. Let it soak as specified by the product instructions.
- Rinse & Wash: Rinse the filter under warm water. Wash in mild, soapy water using a gentle kneading motion, never twisting. Multiple washes may be necessary until water runs clear.
- Dry Completely: Squeeze out excess water (never wring). Let the filter air dry fully; you can speed up with an air compressor set to low pressure. A damp filter can compromise engine safety and performance.
- Oil the Filter: Once dry, saturate the filter with high-quality foam filter oil. Work the oil evenly through the foam (use nitrile gloves for protection). Ensure every pore is coated—uneven coverage can allow harmful particles through.
- Inspect and Reinstall: Carefully inspect for tears or damage. If compromised, replace immediately. Reinstall on the filter cage, taking care to properly align the sealing edges. Apply a light layer of waterproof grease to the sealing lip to ensure a dust-proof fit.
- Reassemble and Test: Refit the assembly to the airbox, securing both tabs. Reinstall your seat.
When to Replace the Air Filter
Replace your foam filter if it shows signs of tearing, degraded seams, or persistent staining after washing. An old or damaged filter cannot adequately protect your FX350's engine and could increase wear or lead to costly repairs.
FX350 Owner Tips & Common Mistakes
- The FX350's side-access airbox encourages frequent checks–don't skip this during every oil change or after dusty rides.
- Avoid over-oiling; excess oil can restrict airflow. On the other hand, under-oiling is a frequent cause of sand or dust intrusion.
- Be gentle: never wring the foam filter, which weakens its structure and shortens its lifespan.
- If modifying the airbox for increased airflow (as with later FX350 models), inspect and clean your filter more regularly, as more air often means more dirt exposure.
- Keep a spare, pre-oiled filter ready for quick swaps during multi-day rides.
Maintain Like a Pro with MotoSport
Regular air filter service protects your 2019 Husqvarna FX350's performance and resale value. MotoSport offers OEM and high-performance filter options plus premium cleaning kits–making care and replacement seamless for every dirt bike enthusiast.
Related Shopping Categories
Shop Air Filters for a 2019 Husqvarna FX350 Dirt Bike.
Shop Air Filter Oil for a 2019 Husqvarna FX350 Dirt Bike.
Shop Air Box Covers for a 2019 Husqvarna FX350 Dirt Bike.
Shop Tools for a 2019 Husqvarna FX350 Dirt Bike.
Shop Intake Parts for a 2019 Husqvarna FX350 Dirt Bike.
Disclaimer: This guide is provided for general informational purposes only and is not intended to replace your motorcycle's official owner's manual. Always refer to your manufacturer's documentation for model-specific instructions, torque specifications, safety procedures, and maintenance requirements. If you are unsure or inexperienced, consider seeking assistance from a qualified mechanic or technician.
