KYMCO Downtown 300i ABS Service Manual page 245

20
.
EVAPORATIVE EMISSION CONTROL SYSTEM
PURGE CONTROL VALVE
REMOVAL
1. Remove the front cover.
2. Disconnect the purge control valve vacuum
tube that goes to the throttle body and the
tubes that go to the air cleaner and charcoal
canister. Remove
canister/purge control valve.
INSPECTION
Connect a vacuum pump to the purge control
valve tube that goes to the air cleaner and
apply vacuum pressure of 250mm/Hg. The
specified vacuum must be maintained for one
minute. Replace the purge control valve with
a new one if vacuum is not maintained.
Connect a vacuum pump to the purge control
valve tube that goes to the carburetor vacuum
tube and apply vacuum pressure of 45mm/Hg.
The specified vacuum must be maintained for
one minute. Replace the purge control valve
with a new one if vacuum is not maintained.
the charcoal
Downtown 300i ABS
Purge Control Valve
To Air Cleaner
Vacuum Pump
To Air Cleaner
To Throttle Body
To Throttle Body
To Fuel Tank
To Throttle Body
Vacuum Pump
20-4