Honda XL350R 1984 Shop Manual page 60

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FUEL
SYSTEM
PURGE CONTROL VALVE
INSPECTION
(CALIFORNIA
MODEL)
Check
all
fuel
tank Purge
Control
Val
ve
(PCV), and
charcoal canister
hoses to
be
sure
they
are
not
kink-
ed and are securely
connected.
Replace
any
hose that shows signs of
damage
or
deterioration
.
NOTE
The
PCV is located
under the right
ca
rburetor.
Disconnect the
PCV
hoses
from
their
connections
and remove
the
PCV
from
its
mount.
Refer to the
routing
label on
the
inside
of
the frame righ
t
side
cover for
hose
connections.
Connect a
vacuum
pump
to the 8 mm
1.0.
hose that
goes
10
the
left
carbureto
r
body.
Apply the
speci-
fied
vacuum
to
the PCV.
SPECIFIED VACUUM
:
250
mm
(9.B
in)
Hg
The
specified vacuum should be maintained.
Replace
the
PCV
if
vacuum is not
maintained
.
Remove
the vacuum
pump and
connect
it
to
the
hose that
goes
to the
left carburetor cap.
Apply
t
he specified vacuum to
the
PCV.
SPECIF
IED
VACUUM
:
250
mm
(9.8 in)
Hg
The
specified
vacuu
m should
be
maintained.
Replace the
PCV
if
vacuum is not
maintained
.
Connect a
pressure pump
to
the
8 mm
1.0.
hose
that goes
to the
charcoal canister. Whi le applying
the specified vacuum
to the PCV hose
that goes to
the carburetor cap, pump air
through the
canister
hose. Air should flow throug
h
the PCV and
out
the
hose
that goes
to the
left
carburetor
body
.
Replace
the
PCV
if air
does
not flow out.
CAUTION
To
prevent
damage to
the
purge control valve.
do not use
high
air pressure
sources.
Use a
hand
operated air pump
only.
Re
move the
pumps,
install the
PCV on its
mOUn!.
route and reconnect the hoses according to the
routing label.
4-16
PURGE
CONTROL VALVE
I
To
CHAR~~A~
L <;:;::~>.£';:;
CANI STER
,
To LEFT
CARBURETOR
CAP
VACUUM
PUMP
ST
-AH-260-MC7
(U.S.A.onlvl
VACUUM PUM
P
ST
-
AH -260-MC7
(U.S.A.
only)
VACU
UM
PUMP
ST
-AH-260
-MC7
(U
.S.A.
only)
PRESSUR
E
PUMP':.-----:::::'.-.J
l:.,>{
ST
-AH- 255-
MC7
(U.S.A. only)

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Xl350r 1985

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