Yamaha MOTO-4 1987 Owner's Manual page 69

3. Wash the element gently, but thorou- NOTE:
ghly, in solvent. In order to function properly, the element
must be damp with oil at all times, but not
dripping withoil.
Never use low flash point solvents such as
gasoline to clean the air filter element. Such 6. Reinstall the element assembly and parts
solvent may lead to a fire or explosion, removed for access.
7. The air filter element should be cleaned
4. Squeeze the excess solvent out of the every 20 _ 40 hours. It should be clean-
filter and let dry. ed and lubricated more often if the
machine is operated in extremely dusty
Do not twist the filter element when squeezing NOTE:
the filter element, Each time filter element maintenance is per-
formed, check the air inlet to the filter case
5. Pour a small quantity of foam-air-filter
for obstructions. Check the air cleaner joint
oil or SAE 10W30 type SE motor oil
rubber to the carburetor and manifold fittings
onto the filter element and work thorou-
for an air-tight seal. Tighten all fittings
ghly into the porous foam material.
thoroughly to avoid the posibility of unfiltered
air entering the engine.
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