How to Clean or Replace a Yamaha Grizzly Air Filter

Whether you clean it or replace it, the air filter in a Yamaha ATV is an important part of its regular maintenance. A clean air filter means more horsepower and longer engine life. 

You should inspect and clean the air filter in a Yamaha Grizzly 700 after every 50 hours of riding, and even more often if you ride your ATV regularly in sandy or muddy conditions. Watch the video above and follow the steps below to clean and replace a Yamaha Grizzly 700 air filter.

Tools and Parts - Yamaha YFM700 Grizzly Air Filter Maintenance

  • Philips screwdriver
  • Foam air filter cleaner
  • Foam air filter oil
  • Air filter
 

PJ 1 foam filter cleaner

PJ1 foam filter oil

 

NOTE: The air filter on a Yamaha Grizzly YFM700 is made of foam, so make sure to get foam air filter cleaner and foam air filter oil, not fiber air filter cleaner nor fiber air filter oil.

Removing a Yamaha Grizzly YFM700 Air Filter

Step 1. Remove the seat and the plastic cover in front of the handlebars. Both the seat and cover unclip without the need for tools.

Yamaha Grizzly YFM700 front cover

Step 2. Remove the top cover by turning the two smaller plastic rivets at the front and the two larger plastic rivets at the back about a quarter-turn with a Phillips screwdriver until they release. Then, remove the rivets. 

Yamaha YFM700 Grizzly air filter removal

NOTE: You need to turn the handlebars to access the front two rivets.

Step 3. Unfasten the clips on the airbox cover and lift it off.

Yamaha Grizzly YFM700 airbox

Step 4. Remove the air filter and the air filter plate beneath it.

Yamaha Grizzly air filter and plate

Inspecting a Yamaha YFM700 Grizzly Air Filter

Step 1. Gently stretch the filter to test its elasticity. If the filter begins to crack or crumble, replace it. Look for any rips or holes in the filter, which are also signs that the filter needs to be replaced.

Yamaha Grizzly YFM700 air filter inspection

NOTE: The air filter should have a small degree of elasticity to it.

Step 2. Check for signs of contaminants in the air intake leading to the engine at the foot of the airbox. As long as a dry filter still has some elasticity and isn't cracked or torn, it can be cleaned, oiled and reused.

NOTE: The filter should be lightly oiled, because oil helps the filter to catch and trap small particles and contaminants. An indication that the air filter has not been serviced regularly is that it's dry and free of oil.

Cleaning and Oiling a Yamaha Grizzly YFM700 Air Filter

Step 1. Spray the air filter with foam air filter cleaner. Coat it liberally on both sides, then work the cleaner into the filter by hand and leave the filter to sit for about 15 minutes.

Yamaha YFM700 air filter cleaning

Step 2. Thoroughly rinse the air filter in water and squeeze it dry. Don't wist or wring the filter dry because doing so will probably tear it.

Step 3. Leave the filter to air dry completely.

Step 4. Clean the inside of the airbox with contact/brake cleaner while you're waiting for the filter to dry. 

Yamaha Grizzly YFM 700 air filter cleaning

Step 5. Spray an even coat of foam air filter oil onto both sides of the air filter, and knead the oil into the foam.

Yamaha Grizzly air filter oil

Replacing a Yamaha Grizzly YFM700 Air Filter

Step 1. Reinstall the clean air filter onto the air filter plate, or install a new filter to the plate. 

NOTE: A new OEM Yamaha Grizzly air filter comes pre-oiled and ready to install right out of the box.

Step 2. Reinstall the plate and filter back into the airbox, making sure to tuck in the edges of the filter.

Yamaha Grizzly YFM700 air filter replacement

Step 3. Reinstall the airbox cover and reattach the clips. Make sure the cover is properly lined up with the airbox, otherwise it won't seal properly.

Yamaha Grizzly foam air filter install

Step 4. Reinstall the top cover with the larger plastic rivets at the back and the smaller rivets at the front. 

Step 5. Reinstall the front panel and the seat by pushing them back in place and you're done.

 

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