1.7AIR CLEANER AND EXHAUST SYSTEM
REMOVAL
1. See Figure 1-9. Remove screw (1) and air cleaner cover
(2).
2. See Figure 1-10. Gently pull both rubber breather tubes
(1) from the element.
3. Slide clip-nut (2) to the left to allow access to third screw.
Remove three screws (3), bracket (4) and filter element
(5).
4. Replace the filter element if damaged or if filter media
cannot be adequately cleaned.
Do not use gasoline or solvents to clean filter element.
Flammable cleaning agents can cause an intake system
fire, which could result in death or serious injury. (00101a)
5. Gently pull the breather tubes from the breather bolts on
the backplate.
Compressed air can pierce the skin and flying debris from
compressed air could cause serious eye injury. Wear
safety glasses when working with compressed air. Never
use your hand to check for air leaks or to determine air
flow rates. (00061a)
6. Clean filter element.
a. Wash the paper/wire mesh air filter element and
breather tubes in lukewarm water with a mild deter-
gent. Do not strike filter element on a hard surface to
dislodge dirt.
b. Allow filter to either air dry or blow it dry, from the
inside, with low pressure air. Do NOT use air cleaner
filter oil on the Harley-Davidson paper/wire mesh air
filter element.
c. Hold the filter element up to a strong light source. If
light is uniformly visible through the element, it is
sufficiently clean.
7. Inspect seal ring on cover for cracks or tears. Verify that
it seals tightly to backplate. Replace as required.
8. Inspect breather tubes for tears, cuts, holes or other
damage. Replace as necessary.
NOTE
The breather tubes allow crankcase vapors to be directed into
the air filter element. By providing effective recirculation of
crankcase vapor, the tubes serve to eliminate the pollutants
normally discharged from the crankcase. Air cleaner mounting
without installation of the breather tubes, or with breather tubes
that are not air tight, allows crankcase vapors to be vented into
the atmosphere in violation of legal emissions standards.This
will also negatively affect the engine's breather system as it
will cause the umbrella valve to flutter.
9. Wipe inside of air cleaner cover and backplate with damp
cloth to remove dust.
10. On California models only, make sure trap door swings
freely.
1. Breather tubes
2. Clip-nut
3. Screw (3)
4. Bracket
5. Filter element
Figure 1-10. Air Cleaner Element
INSTALLATION
1. See Figure 1-11. Position new gasket on filter element.
Make sure gasket holes are aligned with screw holes.
2. See Figure 1-10. Attach breather tubes (1) to breather
screws on backplate.
3. Install air filter element (5) and bracket (4) using three
screws (3). Tighten to 40-60 in-lbs (4.5-6.8 Nm). Slide
clip-nut (2) to the right and into place.
4. Insert breather tubes (1) into holes in filter element.
2008 Dyna Service: Maintenance 1-15
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