Honda Shadow TA200 2001 Manual page 87

FUEL SYSTEM
SYSTEM INSPECTION
Start the engine and warm i t up to normal operating tem-
perature.
Remove the air cleaner element (page 3-6).
Check that the secondary air intake ports are clean and free
of carbon deposits.
-
1
, AIR INTAKE PORTS
Remove the PAIR check valve cover (page 5-17).
Check the PAIR check valve i f the port i s carbon fouled.
Disconnect the PAIR control valve vacuum tube.
Connect a vacuum pump to the PAIR control valve vacuum
tube.
Start the engine and open the throttle slightly to be certain
that air i s sucked in through the air supply hose.
If the air i s not drawn in, check the supply hoses for clogging.
With the engine running, gradually apply vacuum to the PAIR
control vale vacuum tube.
Check that the air supply hose stops drawing air, and that the
vacuum does not bleed.
SPECIFIED VACUUM: 290 mmHg (11.4 in Hg)
If the air drawn in, or i f the specified vacuum is not main-
tained, i n stall a new PAIR control valve.
If atterburn occurs on deceleration, even when the second-
ary air supply system i s normal, check the air cut-off valve.
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