2005 YAMAHA YFZ450 air filter

8-67 1. Wing bolt 2. Air filter element
1. Boulon papillon 2.Élément du filtre à air
1. Perno de aletas 2. Elemento del filtro de aire
1. Air filter element 2. Frame
1.Élément du filtre à air 2. Armature
1. Elemento del filtro de aire 2. Bastidor
3. Remove the air filter element by removing the
wing bolt.
4. Remove the air filter element from its frame.
5. Wash the air filter element gently but thor-
oughly in solvent.
WARNING
_ Always use parts cleaning solvent to clean the
air filter element. Never use low flash point sol-
vents or gasoline to clean the air filter element
because the engine could catch fire or ex-
plode. _
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8-69
6. Squeeze the excess solvent out of the air fil-
ter element and let it dry.CAUTION:_ Do not twist the air filter element when squeez-
ing it. _7. Inspect the air filter element and replace it if
damaged.
8. Apply foam air filter oil to the air filter element.NOTE:_ The air filter element should be wet but not drip-
ping. _9. Pull the air filter element over its frame.
10. Install the air filter element by installing the
wing bolt.
11. Install the air filter case cover by hooking the
holders onto the filter case.
12. Install the seat.
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8-71
NOTE:_ The air filter element should be cleaned every 20–
40 hours. It should be cleaned and lubricated more
often if the machine is operated in extremely dusty
areas. Each time air filter element maintenance is
performed, check the air inlet to the air filter case
for obstructions. Check the air intake duct between
the air filter case and the carburetor and the mani-
fold fittings for an airtight seal. Tighten all fittings
securely to avoid the possibility of unfiltered air en-
tering the engine. _CAUTION:_ Never operate the engine with the air filter ele-
ment removed. This will allow unfiltered air to
enter the engine, causing rapid engine wear
and possible engine damage. Additionally, op-
eration without the air filter element will affect
carburetor jetting with subsequent poor per-
formance and possible engine overheating. _
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10-3
Radiator capacity (including all routes): 1.30 L
Air filter: Wet element
Fuel:
Type
Tank capacity
Reserve amountPREMIUM UNLEADED GASOLINE ONLY
For Europe:
PREMIUM UNLEADED GASOLINE ONLY with
a research octane number of 97 or higher
10.0 L
1.9 L
Carburetor:
Type
× quantity
ManufacturerFCR39H
× 1
KEIHIN
Spark plug:
Type/manufacturer
GapCR8E/NGK
0.7–0.8 mm
Clutch:
Type
OperationWet, multiple-disc
Left hand operation
Transmission:
Primary Reduction System
Primary Reduction Ratio
Secondary Reduction System
Secondary Reduction Ratio
Transmission type
OperationSpur gear
62/22 (2.818)
Chain drive
38/14 (2.714)
Constant mesh, 5-speed forward
Left foot operation MODEL YFZ450
U5TG61.book Page 3 Friday, April 2, 2004 11:28 AM