Purge Control Valve Inspection (California Model) - Honda 1984 Shadow VT700C Manual

PURGE CONTROL VALVE INSPECTION
(CALIFORNIA MODEL)
NOTE:
The purge control valve should be inspected
if
hot restart is difficult.
Check all fuel tank, Purge Control Valve (pev ),
and charcoal canister hoses to be sure they are not
kinked and are securely connected. Replace any
hose that shows signs of damage or deterioration.
NOTE:
The
pev
is located on the frame above the
front cylinder.
Disconnect the
pev
hose at the 3-way joint and
remove the
pev
from its mount. Refer to the rout-
ing label on the inside of the left side cover for hose
connections.
Connect a vacuum pump to the 8 mm 1. 0. hose that
gose to the 3-way joint. Apply the specified
PURGE CONTROL
VALVE
vacuum to the
pev.
P'UflG£ COHr ROL V"LH
SPECIF IED VACUUM: 250 mm (9.8 in) Hg
The specified vacuum should be maintained.
Rep lace the PCV if vacuum is not maintained.
Remove the vacuum pump and connect it to the
vacuum hose that goes to the
left carburetor body.
Apply the specified vacuum to the PCV.
SPECIFIED VACUUM: 250 mm (9.8 in) Hg
The specified vacuum should be maintained .
Replace the PCV if vacuum is not maintained.
Connect a pressure pump to the 8 mm I.D . hose
that goes to the charcoal canister. While applying
the specified vacuum to the PCV hose that goes
to the 3-way joint pump air through the canister
hose. Air should flow through the PCV and out the
hose that goes to the 3-way Joint.
Replace the PCV if air dose 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.
Remove the pumps, install the PCV on its mount,
route and reconnect the hoses according to the
routing label.
TO
c ....
~CO
.. L \
TO LEFT CAN'STER
C .. RBURETOR BOOY V .. CUUM ru MP
ST ..... 1I5O-MC'
'u.s
" . 00'.'
VACUUM PUMP
ST- AH -260·MC7 (U.S.A. only)
FUEL SYSTEM
ecv
only)
4-17