Yamaha EF4000DE - Manual (Page 34)

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AE00914
AIR FILTER
1. Remove the air filter cover and element.
2. Wash the element in solvent and dry.
3. Oil the element and squeeze out excess oil.
The element should be wet but not dripping.
c C
Do not wring out the element.
This could cause it to tear.
NOTE:
For EF4000DE/YG4000D, the dry foam urethane
(sponge) 1 is installed to absorb any excessive oil
that comes out of the air filter element. Therefore do
not apply oil to the sponge 1. If it gets oily, squeeze
out the oil.
4. Insert the element into the air filter.
NOTE:
Be sure the element sealing surface matches the air
filter so there is no air leak.
c C
The engine should never run without the element;
excessive piston and cylinder wear may result.
w
Never use solvent while smoking or in the vicinity
of an open flame.
å EF4000DE/YG4000D
∫ EF5200DE/EF6600DE/YG5200D/YG6600D/YG6600DE
710-037a
B
710-058a
q
A
Recommended oil:
Foam-air-filter oil
or
SAE #20 motor oil
7WV-9-11 B 10/15/03 3:50 PM Page 29