Yamaha YZ250FM 2021 Owner's Service Manual

ENGINE3-16• Remove the two ribs “a” located on the left andright sides of the projections “b” on the airscoop, and slide the air filter case cover towardthe front of the vehicle to remove it.2. Turn the plates “1” in direction “a”.3. Remove:• Air filter guide “1”• Air filter element “2” (from the air filter guide)• Guide “3” (from the air filter element)• Seal “4” (from the air filter element)4. Wash:• Air filter elementa. After washing the element with air filtercleaner or kerosene, squeeze and dry itcompletely.WARNINGEWA19110Do not use gasoline or organic (acid/alka-line) volatile oil for washing.NOTICEECA24280Do not twist the element when squeezing theelement.5. Check:• Air filter elementDamage  Replace.6. Apply:• Yamaha foam air filter oil or other qualityfoam air filter oila. Put the air filter element into a plastic bagand drip the filter oil into the bag.b. With the element inside the bag, rub itthoroughly so that the element is evenlypermeated with the oil.c. Wrap the element in a clean cloth, rub theelement gently, and wipe off any excessoil.TIP• The element should be permeated with oil sothat it is wet but not dripping.• When replacing the element, permeate the el-ement in oil by using the same procedure aswhen cleaning.7. Install:• Seal “1” (to the air filter element)• Guide “2” (to the air filter element)• Air filter element “3” (to the air filter guide)• Air filter guide “4”TIP• Apply lithium soap-based grease on the entireseal lips when installing the air filter guide.• Make sure that the two projections “a” at therear side of the vehicle on the air filter guide aresecurely fitted into the two slots “b” in the air fil-ter case.• Check that the air filter element is turned up be-tween the air filter guide and air filter case andthat there is no gap.Gap  Reinstall.123ab11aaaa312 4