Kawasaki Ninja ZX-12R Motorcycle. Service Manual (2002-2005 year) - page 8
3-118 FUEL SYSTEM (DFI)
Fuel Injectors (#1, #2, #3, #4: Service Code 41, 42, 43, 44)
•
For ZX1200-B3 model
∼
; as shown in the figure.
If the reading is out of the range, perform the “Injector Unit
Test”.
If the reading is normal, perform the “Injector Unit Test”
for confirmation.
Injector Unit Test
•
Use two leads [A] and the same test light set [B] as in
“Injector Signal Test”.
Rating of Bulb [C]: 12 V × (3
∼
3.4) W
12 V Battery [D]
CAUTION
Be sure to connect the bulb in series. The bulb
works as a current limiter to protect the solenoid
in the injector from excessive current.
•
Connect the test light set to the injector [E] as shown.
•
Open and connect [F] the end of the lead to the battery
(–) terminal repeatedly. The injector should click.
If the injector does not click, replace the throttle body assy.
If the injector clicks, check the wiring again If the wiring is
good, replace the ECU.
Injector Fuel Line Inspection
•
Remove the throttle body assy (see this chapter).
•
Check the injector [A] fuel line for leakage as follows:
○
Connect a commercially available vacuum/pressure
pump [B] to the nipple [C] of the delivery pipe [D] with the
fuel hose [E] (both ends connected with the clamps [H])
as shown.
○
Apply soap and water solution to the areas [F] shown.
○
Watching the pressure gauge, squeeze the pump lever
[G], and build up the pressure until the pressure reaches
the maximum pressure.
Fuel Line Maximum Pressure
Standard:
300 kPa (3.06 kgf/cm², 43 psi)
CAUTION
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 system is good.
If the pressure drops at once, or if bubbles are found in
the area, the line is leaking. Perform the following as
necessary.
○
Retighten the fuel hose clamps.
Torque - Fuel Hose Clamp Screws: 1.5 N·m (0.15 kgf·m, 13
in·lb)