48
8. Loosen the air bleed plug (F igure 8) on top
of
the fuel
filter body.
9. Make sure the fuel tank valve is open, then operate the
primer lever on the fuel transfer pump (Figure 9).
10. Operate the lever while observing the fuel emitted
around the bleed plug. Air will be emitted along with the
fuel. Stop operating the lever when the fuel is free
of
air,
then tighten the air bleed plug.
Bleeding air
from
the
fuel
system
Whenever air enters the fuel injection system, such as
when the fuel tank runs dry, components arc replaced, or a
fuel line is damaged or disconnected, bleed the air from
the fuel system to prevent
eng
ine misfire. Refer to Chap-
ter
Seven
for the air bleeding procedure.
Air
Filter
An air filter (A,
Figure 10, typical) removes airborne
dirt and debris. Within the air filter canister is a reuseable
polyurethane filter clement. Clean the filter element after
every
250 hours of operation or more frequently
if
the en-
gine operates
in a dirty environment. Inspect the filter ele-
men
t before each o
perat
ing season to be sure it is clean
and undamaged.
Use the following procedure to remove and clean the
filter clement:
I. Unsnap the
filter canister retaining clip (B, Fig
ure
10)
and remove the canister and filter element.
2. Separate the
filter
clement
from the canister (Fig
ure
11). Note the mesh cone inside the foam filter.
3. Inspect the foam for holes, tears or other damage. Dis-
car
d the foam
if
damaged.
CHAPTER
THREE
4. Clean the foam filter and mesh cone in soapy water.
If
the foam filter cannot be cleaned, discard it and install a
new filter. Let the foam filter dry.
5. Reassemble and reinstall the filter by reversing the re-
moval procedure.
NOTE
Be sure the intake tube (C, Figure 10)
of
the
canister points slightly downward and not
upward; otherwise. water can enter the tube
and run into thejilter.
Drive B
elt
s
Inspect all drive belts at regular intervals to make sure
they arc in
good
condition and are properly tensioned. Re-
place worn, frayed, cracked or glazed belts. The
compo-
nents to which they direct
power
arc essential to the safe
and reliable operation
of
the boat.
If
correct adjustment is
maintained on each belt, all will usually give the
same
ser-
vice life. For this reason and because
of
the cost involved
in replacing an inner belt (requiring the removal
of
the
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