Kawasaki Ninja Service Manual: Fuel Pump Operating Voltage Inspection

Kawasaki Ninja Service Manual / Fuel System (DFI) / Fuel Pump / Fuel Pump Operating Voltage Inspection

NOTE

Be sure the battery is fully charged.

Turn the ignition switch to OFF.
Remove: Fuel Tank Bolts (see Fuel Tank Removal) Fuel Tank Bracket Bolts (see Fuel Tank Removal)
Disconnect the fuel pump lead connector and connect the harness adapter [A] between these connectors as shown in the figure.

Main Harness [B] Fuel Pump [C]

Special Tool - Measuring Adapter: 57001-1700

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

Fuel Pump Operating Voltage Inspection

Fuel Pump Operating Voltage Connections to Adapter:

Digital Meter (+) → R (pump Y/R) lead

Digital Meter (–) → BK (pump BK/W) lead

Measure the operating voltage with engine stopped and with the connector joined.
Turn the engine stop switch to run position.
Turn the ignition switch to ON.

Fuel Pump Operating Voltage Inspection

Operating 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 wiring for continuity (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, but the pump does not operate, replace the fuel pump (see Fuel Pump Removal/Installation).

Fuel Pump Operation Inspection

NOTE Be sure the battery is fully charged. Turn the engine stop switch to run position. Turn the ignition switch to ON and make sure that the fuel pump operates (make light sounds) for 3 seco ...

Pressure Regulator Removal

The pressure regulator [A] is built into the fuel pump and can not be removed. ...

Other materials:

Check 3-1: CAN Communication Line Resistance Inspection
Set the hand tester [A] to the ×1 Ω range and connect it to the terminal [11] and [12] in the meter unit. Special Tool - Hand Tester: 57001-1394 CAN Communication Line Resistance (at Meter Unit) Standard: 122 126 Ω If the tester reading is not specified, replace the meter ...

Rebound Damping Force Adjustment
To adjust the rebound damping force, turn the rebound damping adjuster [A]. The standard adjuster setting is the 3 3/4 turns out from the fully clockwise position. WARNINGIf both adjusters are not adjusted equally, handling may be impaired and a hazardous condition may res ...

Brake Disc Warp Inspection
Raise the wheel off the ground with the jack. Special Tools - Jack: 57001-1238 Jack Attachment: 57001-1608 For front disc inspection, turn the handlebar fully to one side. Set up a dial gauge against the disc [A] as shown in the figure and measure disc runout, while turning [B] the ...