Honda V65 Magna-VF1100C 1983 Shop Manual page 79

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 No. 2 carburetor body, pump air through the
canister hose. Air should flow through the PCV and
out the hose that goes to the No. 1, 3 carburetor
body. Replace the PCV if air does not f low out.
Remove the pump, install the PCV on its mount.
route and reconnect the hoses according to the
routing label.
AIR VENT CONTROL VALVE
(California model only, AFTER '8~
AIR VENT CONTROL VALVE (AVCV)
INSPECTION
Disconnect the AVCV hoses from their connections
and remove the AVCV from its mount. Refer to the
routing label on rear fender behind the seat for hose
connections.
Connect a vacuum pump to the hose that goes to
the No.3 cylinder intake port.
Apply the specified vacuum to the A VCV.
SPECIFIED VACUUM: 250 mm (9.8 in) Hg
The specified vacuum should be maintained.
Replace the AVCV if vacuum is not maintained.
CAUTION:
To prevent damage to the air vent control
valve, do not use high air pressure sources.
Use a hand operated air pump only.
Connect the vacuum pump to the air vent port of
the AVCV.
Apply vacuum to the AVCV. The vacuum should
hold steady.
Replace the AVCV if vacuum leaks.
TO N0.3
CYLINDER
INTAKE PORT
FUEL SYSTEM
PRESSURE PUMP
ST·AH-255-MC7 (U.S.A. only)
VACUUM PUMP
ST-AH-260-MC7 (U.S.A. only)
/
TO OPEN AIR
•
AIR VENT CONTROL
,-,.._ _ _ _ VALVE
VACUUM PUMP
ST-AH-260-MC7 (U.S.A. only)
1
VACUUM PUMP
ST-AH-260-MC7 (U.S.A. only)
4-21