Kawasaki Ninja Service Manual: For Secondary Fuel Injectors

Kawasaki Ninja Service Manual / Fuel System (DFI) / Fuel Injectors / Fuel Injector Power Source Voltage Inspection / For Secondary Fuel Injectors

Remove the fuel tank (see Fuel Tank Removal).
Disconnect the injector connector and connect the harness adapter [A] between these connectors as shown in the figure.

Main Harness [B] Secondary Fuel Injector #1 [C]

For Secondary Fuel Injectors

Special Tool - Measuring Adapter: 57001-1700

Connect a digital meter [D] to the harness adapter lead.

Secondary Fuel Injector Power Source Voltage Connections to Adapter:

For Secondary Fuel Injector #1, #2, #3, #4

Digital Meter (+) → R (injector W/R) lead

Digital Meter (–) → Battery (–) terminal

Measure the power source voltage with the engine stopped.
Turn the engine stop switch to run position.
Turn the ignition switch to ON.

For Secondary Fuel Injectors

Power Source Voltage Standard: Battery Voltage for 3 seconds, and then 0 V

Turn the ignition switch to OFF.

If the reading stays on battery voltage and never shows 0 V, check the fuel pump relay (see Relay Circuit Inspection in the Electrical System chapter).

If the fuel pump relay is normal, check the ECU for its ground and power supply (see ECU Power Supply Inspection).

If the ground and power supply are good, replace the ECU (see ECU Removal/Installation).

If there is still no battery voltage, check the fuel pump relay (see Relay Circuit Inspection in the Electrical System chapter).

If the fuel pump relay is normal, check the power source wiring (see wiring diagram in this section).

Special Tool - Hand Tester: 57001-1394

If the wiring is good, check the ECU for its ground and power supply (see ECU Power Supply Inspection).

If the ground and power supply are good, replace the ECU (see ECU Removal/Installation).

If the reading is in specification, check the output voltage (see Fuel Injector Output Voltage Inspection).

For Primary Fuel Injectors

Remove the air cleaner housing (see Air Cleaner Housing Removal). Disconnect the injector connector and connect the harness adapter [A] between these connectors as shown in the figure. ...

Fuel Injector Output Voltage Inspection

NOTE Be sure the battery is fully charged. Turn the ignition switch to OFF. Remove the ECU (see ECU Removal). Do not disconnect the ECU connector Connect a digital meter [A] to the c ...

Other materials:

Drive Chain Slack Inspection
Refer to the Drive Chain Slack Inspection in the Periodic Maintenance chapter. Drive Chain Slack Adjustment Refer to the Drive Chain Slack Adjustment in the Periodic Maintenance chapter. Wheel Alignment Inspection/Adjustment Refer to the Wheel Alignment Inspection in the Periodic Maintenance ...

Air Cleaner Housing Removal
Remove the fuel tank (see Fuel Tank Removal). Disconnect the secondary fuel hose [A] from the delivery pipe of the nozzle assy [B] (see Fuel Hose Replacement in the Periodic Maintenance chapter). Disconnect the secondary fuel injector connectors [C]. Free the lead from the grooves [D]. ...

Engine Stop Switch
A. Engine Stop Switch B. START/STOP Switch (for Stop Watch) C. Starter Button In addition to the ignition switch, the engine stop switch must be in the position for the motorcycle to operate. The engine stop switch is for emergency use. If required, move the switch to the positio ...