System Inspection; Evaporative Emission Purge Control Valve (Evap Purge Control Valve) - Honda Motorcycle Service Manual

EMISSION CONTROL SYSTEMS
SYSTEM INSPECTION
EVAPORATIVE EMISSION CONTROL
SYSTEM (California model only)
Check the system hoses for deterioration, clogging, damage.
and loose joints and connections.
Replace any hose that shows signs of damage or deterioration.
Check the evaporative emission canister for cracks or
damage.
EVAPORATIVE EMISSION PURGE CONTROL
VALVE (EVAP PURGE CONTROL VALVE)
NOTE
DIAPHRAGM
-
The evaporative emission purge control valve should be
inspected if hot restart is difficult.
Disconnect the EVAP purge control valve hoses from their
connections and remove the EVAP purge control valve from
its mount. Referto the vacuum hose routing diagram label for
hose connections.
Connect a vacuum pump to the hose that goes to the vacuum
tube fitting.
Apply the specified vacuum to the EVAP purge control valve.
VACUUM P U M P ST-AH-260-MC7
(U.S.A. only)
SPECIFIED VACUUM: 2 5 0 m m (9.8 in) H g
The specified vacuum should be maintained. Replace the
EVAP purge control valve if vacuum is not maintained.
Remove the vacuum pump and connect
it
t o the hosefitting
(EVAP output port) that goes t o the carburetorb)
NOTE
If the EVAP purge control valve has t w o hose fittings
that go to the carburetorb), connect the blocked tube
onto the other fitting to prevent air leaks.
Apply the specified vacuum t o the EVAP purge control valve.
SPECIFIED VACUUM: 2 5 0 m m ( 9 . 8 in) H g
The specified vacuum should be maintained. Replace the
EVAP purge control valve if vacuum is not maintained.
EVAP PURGE
TO CARBURETOR CONTROL VALVE
(EVAP PURGE C
VALVE OUTPUT
LV E
VACUUM PUMP
Date of Issue: March, 1995
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HONDA MOTOR CO..LTD.