Air Filter Cleaning – Replacement Guide for 2020 Husqvarna FE350HQ

Shop parts for a 2020 Husqvarna FE350HQ Dirt Bike.

The 2020 Husqvarna FE350HQ stands out in the dual-sport segment for its combination of lightweight handling and reliable performance, making routine air filter care essential for maximum engine longevity and responsive power delivery. This model features a high-flow foam air filter housed within a compact airbox for superior dirt and dust resistance. Proper cleaning and timely replacement of the air filter will help protect the engine from abrasive particles and maintain peak performance.

Tools – Supplies You'll Need

  • Clean rags
  • Motocross-specific air filter cleaning solution
  • Recommended air filter oil (foam filter type)
  • Latex or nitrile gloves
  • Replacement air filter (OEM or performance equivalent)
  • 8 mm socket wrench or T-handle

How to Remove the Air Filter

  • Ensure the motorcycle is on a secure stand and the ignition is off.
  • Remove the seat – typically by releasing the quick turn fastener or using an 8 mm socket located under the rear fender.
  • Locate the airbox behind the seat underbody.
  • Gently pull out the filter carrier by loosening the clamp or pin securing the foam air filter.

Cleaning Procedure

  • Inspect the filter for tears, excessive wear, or loose seams. Replace immediately if damaged.
  • Pre-clean by lightly tapping and brushing off heavy debris away from the intake opening.
  • Submerge the foam air filter in a dedicated cleaning solution. Massage gently to release dirt – avoid wringing or pulling, which can damage the foam structure.
  • Rinse thoroughly with clean water and repeat until the water runs clear. Let the filter air dry completely in a well-ventilated space, away from direct sunlight.
  • Clean the airbox and filter carrier with a damp rag to remove residue, making sure no dirt falls into the intake tract.

Oiling – Reinstallation

  • Apply foam filter oil evenly, working it through every section. The filter should be tacky but not dripping.
  • Reinstall the filter on the carrier and ensure the sealing surfaces (rim of the filter) are uniformly coated with oil for best dust protection.
  • Fit the carrier & filter securely into the airbox, double-checking the alignment and seal.
  • Reinstall the seat securely.

Replacement Guide

  • Replace the air filter if it shows persistent staining, tears in the foam, failed gluing, or after every season of heavy riding.
  • MotoSport offers OEM and premium aftermarket replacement filters – perfect fit for the FE350HQ's high-flow air box design.

Model-Specific Insights

  • The 2020 Husqvarna FE350HQ employs a tool-less seat removal for quick air filter access, making regular maintenance easier than older-year bikes.
  • The airbox is designed for rapid inspection but be cautious: in extremely dusty or sandy terrain, clean or replace the air filter after each ride or race for the best engine protection.
  • Maintaining a clean and well-oiled filter will ensure the precise throttle response for which the FE350HQ is renowned, especially on technical trails and competitive rides.

Proprietary MotoSport Tip

  • When riding in muddy or wet environments, inspect the airbox drain to ensure water hasn't accumulated, and replace the filter if it appears waterlogged.
  • Always have at least one clean, oiled spare for instant swaps — essential for multi-day or race events.

Related Shopping Categories

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Shop Tools for a 2020 Husqvarna FE350HQ Dirt Bike.

Shop Intake Parts for a 2020 Husqvarna FE350HQ 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.