21CLEANING OF AIR CLEANERDANGER: INFLAMMABLES STRICTLY PROHIBITEDInterval of cleaning and inspection: Daily (every 10 operating hours)Turn the choke lever- (D) to the full close side, and keep the carburetor offfrom dust or dirt.Loosen the fixing bolt- (G).Remove the air cleaner cover- (A) by pulling its bottom side.Remove the elements- (B) (F) and tap them to remove dirt.If the elements are heavily contaminated:-Remove the elements, immerse them in warm water or in water-dilutedneutral detergent, and dry them completely. Do not squeeze or rub themwhen washing.Before attaching the elements, be sure to dry them completely. Insufficient-drying of the elements may lead to difficult startup.Wipe out oil adhering around the air cleaner cover and the breather part- (E)with waste cloth.Fit the element (sponge)- (B) into the element (felt) (F).Fit the elements into the plate (C) so that the sponge faces the air cleanercover.Immediately attach the cleaner cover and tighten it with fixing bolts. (In-remounting, first place the upper claw, and then the lower claw.)NOTICE:Clean the elements several times a day, if excessive dust adheres to it.-Dirty elements reduce engine power and make starting engine difficult.Remove oil on the elements. If operation continues with the elements-remaining not cleared of oil, oil in the air cleaner may fall outside, resultingin contamination of the environment.Do not put the elements on the ground or dirty place. Otherwise they pick-up dirt or debris and it may damage the engine.Never use fuel for cleaning the elements. Fuel may damage them.-CBAGFED0.7 mm - 0.8 mm(0.028” - 0.032”)CHECKING THE SPARK PLUGOnly use the supplied universal wrench to remove or to install the spark plug.-The gap between the two electrodes of the spark plug should be 0.7 - 0.8 mm-(0.028” - 0.032”). If the gap is too wide or too narrow, adjust it. If the sparkplug is clogged or contaminated, clean it thoroughly or replace it.CAUTION: Never touch the spark plug connector while the engine is running(danger of high voltage electric shock).