2005 Kawasaki KAF400 Mule 600 and Mule 610 4x4 Service Manual, Page 33Get this manual
2-14 PERIODIC MAINTENANCE Periodic Maintenance Procedures
Remove: Element (see Air Cleaner Element Removal) Air Cleaner
Foam Element [A] Paper Element [B] Clean the foam element in bath of high flash-point solvent using soft bristle brushSqueeze it dry in clean towel
CAUTION
Do not wring the element or blow it dry; the element can be damaged
foam element for damage Inspect thepunctured, or hardened, replace itIf it is torn,
Replace the foam element after cleaning it five times or if it is damaged