4. FUEL SYSTEM
4-4
AIR CUT-OFF VALVE
Inspection
Disconnect vacuum hose and air vent hose from
the air cut-off valve.
Connect a hose from vacuum hose connector to
vacuum pump.
Connect air pump to air vent hose.
Apply with specified vacuum to air cut-off valve.
Vacuum value: 420~500 mm-Hg
Pump compressed air from air pump to air vent
hose.
Caution
If the valve is in normal, it will restrict air-flow.
f air-flow is no restrict, replace carburetor
assembly.
The vacuum can not be over 600 mm-Hg. Or
the air cut-off will be damaged.
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