2-5 ENGINE TUNE-UP - Air Cleaner, Heat Control Valve AIR CLEANER ELEMENT CLEANING 1. In removing the air cleaner or element and af ter removal, use care not to drop dirt and dust do wn into th e carbureto r. 2. In cleaning the ele ment , blow air fr om the inner side. 3. In c ase the element is torn or excessively di rty , rep lace with new one. Fig. 2-13 ~ ;': ij . ,, :/,.- Fig. 2-14 ~ Dip Oil Bath Type Wash th e elem ent and casewi th cleaning solvent , and dry th em th oroughIy befo re reuse. Fill the case with engine oi l to its spe cifi ed level. OIL Element Case tdJ - ~ Fig. 2-15 HOT AIR INTAKE Check air c ontrol valve operation.
Valve should close cold air inta ke when cold, hot air int ake when warm. ~ Hot Air - - - - - - - - at H ot ----- -al C ool Fig. 2-16 INSPECTION When th e heat con trol valve sha ft is tur ned by hand, the valve should move smoothly to the stop per, and wh en released, it should return to the other stopper. HEAT CONTROL VALVE ~