Yamaha YZ450FA 2011 Owner's Service Manual page 83

6. Clean:
• Air filter element
Clean them with solvent.
After cleaning, remove the remaining solvent
by squeezing the element.
• Do not twist the element when squeezing
the element.
• Leaving too much of solvent in the ele-
ment may result in poor starting.
7. Inspect:
• Air filter element
Damage → Replace.
8. Apply:
• Foam-air-filter oil or equivalent oil to the ele-
ment
Oil application quantify:
35 g
Squeeze out the excess oil. Element should be
wet but not dripping.
9. If the thin sheet (air filter element 2) is dirty
with mud etc., clean the thin sheet (air filter
element 2) by the following steps.
Cleaning steps:
a. Remove the air filter element 2 "1".
b. Clean the air filter element 2 with solvent.
After cleaning, remove the remaining solvent
by squeezing the element.
Do not twist the element when squeezing
the element.
c. Inspect the air filter element 2.
Damage → Replace.
d. Install the air filter element 2.
10.Install:
• Air filter element "1"
• Air filter guide "2"
• Binder
11.Install:
• Mounting bolt for air filter case cover
Mounting bolt for air filter case cov-
er:
4 Nm (0.4 m•kg, 2.9 ft•lb)
12.Install:
• Fuel tank bolt (front)
Fuel tank bolt (front):
9 Nm (0.9 m•kg, 6.5 ft•lb)
CHECKING THE THROTTLE BODY JOINT
1. Remove:
• Seat
• Air scoop (left/right)
• Fuel tank
• Air filter
2. Check:
• Throttle body joint "1"
Cracks/damage → Replace.
3-12
ENGINE