Service Manual (KLZ1000C) — page 164 of 762

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4-18 COOLING SYSTEM
Radiator

• Install the cap [A] on a cooling system pressure tester [B].
                              NOTE
    ○Wet the cap sealing surfaces with water or coolant to
      prevent pressure leaks.

• Watching  the pressure gauge, pump the pressure tester
  to build up the pressure until the relief valve opens: the
    gauge needle flicks downward. Stop pumping and mea-
    sure leak time at once. The relief valve must open within
    the specified range in the table below and the gauge hand
    must remain within the same range for at least 6 seconds.
    Radiator Cap Relief Pressure
      Standard: 93.3  122.7 kPa (0.95  1.25 kgf/cm², 13.5
                   17.8 psi)
    If the cap can not hold the specified pressure or if it holds
    too much pressure, replace it with a new one.
Radiator Filler Neck Inspection
• Remove:
   Right Inner Middle Fairing (see Inner Middle Fairing Re-
     moval(15-15))
     Radiator Cap
•   Check the radiator filler neck for signs of damage.
•   Check the condition of the top and bottom sealing seats
    [A] in the filler neck. They must be smooth and clean for
    the radiator cap to function properly.