Service Manual (KLZ1000C) — page 669 of 762

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SELF-DIAGNOSIS SYSTEM 17-67
Fuel Injectors #1, #2, #3, #4 (Service Code 41, 42, 43, 44) (DTC P0201, P0202,
P0203, P0204)
Fuel Injector Fuel Line Inspection
• Remove:
   Air Cleaner Housing (see Air Cleaner Housing Re-
  moval(3-54))
  Fuel Hose (see Fuel Hose Replacement(2-19))
○ sure to place a piece of cloth around the fuel outlet
 Be
 pipe of the fuel pump and the delivery pipe of the throttle
 body assy.
                          WARNING
    Fuel is flammable and explosive under certain con-
    ditions and can cause severe burns. Be prepared
    for fuel spillage; any spilled fuel must be completely
    wiped up immediately. When the fuel hose is dis-
    connected, fuel spills out from the hose and the
    pipe because of residual pressure. Cover the hose
    connection with a piece of clean cloth to prevent
    fuel spillage.

•○Check the fuel injector fuel line for leakage as follows.
  Connect a commercially available vacuum/pressure
 pump [A] to the nipple of the delivery pipe [B] with the
 fuel hose [C] (both ends with the clamps [D]) as shown.
  Rear View [E]
○Apply soap and water solution to the areas [F] as shown.
○Watching the pressure gauge, squeeze the pump lever
 [G], and build up the pressure until the pressure reaches
 the maximum pressure.
    Fuel Injector Fuel Line Maximum Pressure
      Standard: 300 kPa (3.06 kgf/cm², 43 psi)

                          NOTICE
    During pressure testing, do not exceed the maxi-
    mum pressure for which the system is designed.
○Watch the gauge for at least 6 seconds.
 If the pressure holds steady, the fuel line is good.
 If the pressure drops at once or if bubbles are found in the
 area, the fuel line is leaking. Replace the delivery pipe,
 fuel injectors and related parts.
○Repeat the leak test, and check the fuel line for no leak-
 age.
•Install the removed parts.
•Start the engine and check for fuel leakage.