Air Filter Cleaning & Replacement Guide for 2019 Husqvarna TE300i
Shop parts for a 2019 Husqvarna TE300i Dirt Bike.
The 2019 Husqvarna TE300i is built to perform in demanding off-road conditions—protecting its powerplant relies on proper air filter maintenance. Keeping the air filter clean and well-oiled is not only key to optimal engine performance, but also essential to the longevity and reliability of your TE300i. Here is MotoSport's in-depth guide, uniquely tailored to this fuel-injected, high-compression enduro machine.
Essential Tools & Supplies
- Nitrile or latex gloves
- Clean rags or towels
- Dedicated air filter cleaner or a biodegradable solvent (matched to your filter oil type)
- High-quality foam filter oil
- Air filter grease (for sealing edges, optional but recommended)
Removing the Air Filter
- Place the bike on a stand to keep it stable.
- Open the left side panel to access the airbox. Remove any excess debris around the cover before taking it off to prevent dirt from falling inside the airbox.
- Carefully unclip and remove the air filter cage tabs. Pull the air filter and cage away gently, taking care to keep debris from entering the air intake tract.
Cleaning Procedure
- Tap the filter gently to knock loose heavy dirt.
- Submerge the filter in a tub of air filter cleaner or the appropriate solvent. Work the cleaner through the foam by squeezing (never twisting or wringing, which can tear the foam).
- If the filter is extremely dirty, let it soak for 15 minutes, then repeat the process using fresh cleaner if needed.
- Rinse thoroughly with clean water until no dirt or cleaner residue remains. Allow the filter to air-dry completely before oiling.
Oiling & Reinstalling the Filter
- Poor oiling is a chief cause of engine wear. Use only dedicated foam air filter oil—never engine oil or alternatives.
- Thoroughly saturate the filter with oil. For even distribution, either submerge it in oil and squeeze gently, or use a bag to knead oil throughout the foam until every part is covered. A properly oiled filter should drip slightly when squeezed but not pour out excess oil.
- Allow the oil to soak and set for at least 30 minutes. This lets thick filter oil migrate throughout the foam.
- Optional: Apply a light coat of air filter grease to the filter's sealing edge for a positive airbox seal, further preventing fine dust from bypassing the filter.
- Reinstall the filter on its cage, ensuring it's properly seated and the tabs or prongs are securely fastened.
- Inspect the airbox for residual dirt. Clean it out with a rag if necessary. Carefully place the filter back in, close the panel, and confirm a tight, clean seal.
Replacement Tips & Model-Specific Notes
- The 2019 TE300i uses a unique fuel-injected system, making consistent airflow especially critical. Always double-check that the filter cage is fully latched—air leaks can cause poor running or even engine damage.
- Some owners note factory cages can feel insecure. Make sure the filter is fully engaged on its locating pins, or consider a quality aftermarket cage if you notice sealing issues.
- Inspect your filter more frequently in dry, dusty, or muddy riding conditions. For many enduro riders, cleaning after every ride is best practice.
- If you run multiple filters (recommended for more frequent maintenance), always have spares pre-oiled in clean plastic bags ready for quick swaps.
- The TE300i's airbox is designed for tool-less access, making regular maintenance straightforward and fast.
Signs It's Time to Replace Your Air Filter
- Tears, holes, or separated glue joints in the foam
- Persistent staining after cleaning
- A weak or loose seal at the edges
- Loss of filtration thickness or structure
Final Word for TE300i Owners
Routine air filter care is one of the most important maintenance tasks for your 2019 Husqvarna TE300i. Sticking to these proven MotoSport steps ensures your fuel-injected two-stroke continues to run clean and strong, no matter how challenging the trail becomes. Happy riding.
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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.
