3. LUBRICATION SYSTEM VITALITY 50 Remove the air cleaner element (1). Wash the air cleaner element in detergent oil, squeeze out and allow to dry. Never use gasoline or organic vaporable oil with acid or alkali for washing. After washing, soak the element in clean engine oil SAE 15W-40# and squeeze out excess oil. Reinstall the element. Wash Squeeze out Soak in oil Squeeze out and dry excess oil d Air Cleaner (4-Stroke) 1.Remove the air filter case cover by removing the 6 screws. 3-11