kpw 50 Workshop-manual : Page 196

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          18. EVAPORATIVE/EXHAUST EMISSION
    CONTROL SYSTEM




 AIR INJECTION CUT-OFF VALVE                                   Air Injection Cut-off Valve
 INSPECTION
 Inspect the air injection cut-off valve flow    Vacuum Pump
 using a vacuum pump. If the flow is not
 within the specified values, replace with a
 new one.
 The flow should be at least 30 liter/min when
 a vacuum of 250mm/Hg is applied. The flow
 should be at least 1.6 liter/min when a
 vacuum of 320mm/Hg is applied. Check each
 connecting tube for cracks or damage and
 replace if necessary.




 INSTALLATION
 The installation sequence is the reverse of
 removal.
  When installing, be careful not to bend
    or twist the tubes and check for proper
    installation.
    The tube length is very important to its
    performance, use the tube of same
    specification for replacement.




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