How to Change the Air Filter on a Kawasaki KLX 110

A new air filter improves performance on your dirt bike, and it's an important gatekeeper that prevents contaminants from getting sucked into the engine. 

On the trail, dust and other contaminants can choke your dirt bike's engine and chip away at horsepower. You might not need to replace your air filter, just clean it. Here's how to clean or change the air filter on a Kawasaki KLX 110 dirt bike.

Tools and Parts Needed - Kawasaki KLX Air Filter Change

Tools

  • Phillips head screwdriver
  • Pliers
  • 8mm socket
  • Ratchet

NOTE: Depending on the condition of the air filter, you either need to clean or replace it. If you're just going to clean the air filter and put it back in the machine, you'll only need the cleaner spray and filter treatment. 

KAwasaki KLX 110 air filter change

Removing the Plastic

Step 1. Remove two of the three 8mm bolts holding the plastic in place on either side of the machine. First, remove the one near the rear of the bike. Next, remove the one near the front on the shroud. 

NOTE: Removing the third 8mm bolt comes later. 

Kawasaki KLX 110 plastic removal

Step 2. Remove the seat by simply lifting the back of the seat up and pushing the front of the seat down to clear it from its latch. 

Kawasaki KLX 110 seat removal

Step 3. Take the plastic pieces below the seat on either side off. Pull the back of the plastic away from the frame, then slide the plastic forward to unhook it from the front shroud. 

Kawasaki dirt bike air filter change

Step 4. Remove the third 8mm bolt on either side underneath where the plastics were hooked.

Step 5. Remove the Phillips screw located on the center of the fuel tank area, just below the fuel fill cap, and lift off the shroud. 

Kawaski KLX 110 plastic shroud removal

Removing the Old Air Filter

Step 1. Locate the air box on the left hand side of the machine, and remove the three Phillips screws to open the box and expose the air filter. 

Kawasaki KLX 110 air filter change

Step 2. Remove the air filter. 

Kawasaki dirt bike air filter removal

From this point you have several choices:

1. Replace your filter with a new Kawasaki KLX air filter by popping it in and putting everything back together. 

2. Depending on your replacement filter, you might need to treat it with foam air filter oil before it putting it back in.

3. Clean the air filter you already have.

NOTE: Cleaning the air filter on your dirt bike takes a little more time than simply replacing it, but it can save you money. If you're going to clean the current filter, make sure there are no tears that will allow dirt to get past the filter into the engine.

Cleaning Your Air Filter

Step 1. Liberally spray foam air filter cleaner on both sides of the filter. Make sure you spray both sides and get a nice coating that soaks into the filter. 

Kawasaki KLX dirt bike air filter cleaning

Step 2. Wait about 15 minutes while the spray works off loose dirt and other contaminants.

Step 3. Knead the filter in a bowl of water to work the dirt out. If your filter is dirty, you'll see the water turn cloudy. Wring the filter out when you're done. 

Kawasaki KLX dirt bike air filter cleaning

Step 4. Wait for the filter to dry completely. 

NOTE: It may take hours for the air filter to dry completely, but do not put the filter back in while it's still wet, as this will create more problems.

Step 5. Treat the dry filter with a light coating of foam filter oil spray on both sides, then knead it in.

Once your cleaned or new air filter has been treated, it's ready to be placed back into the machine.

Replacing the Air Filter on Your KLX 110

Step 1. Find the two openings in the air box. Check inside the top opening (intake) for any dirt or debris inside and use a rag to remove any that's there. 

Kawasaki KLX 110 air intake opening

PRO TIP: We used brake/contact cleaner to tidy up our intake, using a rag to cover the bottom opening. If you use brake cleaner, be sure to wear eye protection. 

Step 2. Look underneath the air box for a small plastic reservoir. It's about the size of your thumb and catches water that is drained from the air box. Use your pliers to squeeze open the clip to remove it, then dump it out, wipe down the inside and put it back. 

Kawasaki motorcycle air filter cleaning

Step 3. Install your new air filter in the same way the old one was placed (the only way, by its shape).  

Kawasaki dirt bike air filter replacement

Step 4. Inspect the seal around the air box lid for cuts, then replace it and tighten the three Phillips head screws that hold it in place.  

Kawasaki dirt bike air filter

Step 5. Replace the plastics on the dirt bike in reverse order from how they were removed, starting with the shroud, and you're done.

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