Honda VT600C Shadow VLX Service Manual page 80

F U EL SYSTEM
Connect a vac u u m pump to the No. 1
rig ht carbu retor body.
Apply t h e specified vacuum t o t h e EVAP CAV CONTR O L
VALVE.
SPECIFIED VACU U M : 250 mm (9.8 in) Hg
TOOL:
Vacuum/Pressure pump
Vacuum pump
The specified vacuu m should be maintained.
Replace the EVAP CAV CONTRO L VALVE if vacuum is not
maintained.
CAUTION
To prevent damage to the evaporative emission carburetor air vent
•
con trol 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 EVAP
CAV CONTROL VALVE.
Apply vacuum to the EVAP CAV CONTROL VALVE.The
vacuum should hold steady.
R eplace the EVAP CAV CONTRO L VALVE if vacuum leaks.
TOOL:
Vacuum/Pressure pump
Vacuum pump
Connect the vacuum pump to the No. 1
right carb u retor body.
Connect the pressu re pump to the air vent port of the EVAP
CAV CONTROL VALVE.
While a pplying the vacuu m to the EVAP CAV CONTR O L
VALVE N o . 1 hose that goes t o t h e rig ht carburetor body,
0
pump air through the air vent port.
Air should flow through the EVAP CAV CONTROL VALVE and
out the hose that goes to the carb u retor air joint pipe.
TOOL:
Vacuum/Pressure pump
Vacuum pump
Pressure pump
Plug the hose that goes to the carburetor air joint pipe.
While applying vacuu m to the EVAP CAV CONTROL VALVE
No. 1 hose that goes to the rig ht carburetor body,apply air
0
pressure.
It should hold steady.
R eplace the EVAP CAV CONTR O L VALVE if pressure is not
retained.
Remove the p u m ps,install the EVAP CAV CONTROL VALVE
o n its mou nt,route and reconnect the hoses according to the
routing label.
TOOL:
Vacuum/Pressure pump
Vacuum pump
Pressure pump
4- 1 8
hose that goes to the
0
A937X - 04 1 - XXXXX or
ST - AH - 260 - MC7
( U .S.A. only)
A937X - 04 1 - XXXXX or
ST - AH - 260 - MC7
( U .S.A. only)
hose that goes to the
0
A937X - 04 1 - XXXXX or
ST - AH - 260 - MC7
ST - AH - 25 5 - MC7
( U .S.A. only)
A937 X - 04 1 - XXXXX or
ST - AH - 260- MC7
ST - AH - 25 5 - MC7
( U .S.A. only)
(21 TO OPEN A I R
( 1 1 TO A I R
J O I NT PIPE
( 3 ) EVAPO RATIVE E M I SS I O N
N o . 6 HOSE
(4) TO
EVAPO RATIVE
E M I S S I O N
/
CAN I STER
N o . 4 HOSE
( 5 ) TO R I G HT
CARBU RETOR
BODY No. 1 HOSE
0
CAR B U R ETO R AI R V E NT
CONTROL VALVE
( 6 1 VAC U U M PU M P