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

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

For Secondary Fuel Injectors


Special Tool - Measuring Adapter: 57001-1700

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

For Secondary Fuel Injectors


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

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:

Tire Installation
WARNINGSome replacement tires may adversely affect handling and cause an accident resulting in serious injury or death. To ensure proper handling and stability, use only the recommended standard tires for replacement, inflated to the standard pressure. Inspect the rim ...

Service Code Erasing
When repair has been done, warning indicator light (LED) and warning symbol go off and service code are not displayed. But the service codes stored in memory of the ECU are not erased to preserve the problem history. In this model, the problem history can not be erased. However, the memorie ...

Rear Wheel Removal
Raise the rear wheel off the ground with the stand [A]. Remove: Cotter Pin [A] Rear Axle Nut [B] Washer [C] Rear Axle [D] (from Right Side) Remove the rear wheel rotation sensor from the caliper bracket (see Rear Wheel Rotation Sensor Removal in the Brakes chapter). ...