Kawasaki Ninja Service Manual: Fuel Pump Relay (Service Code 46)

ECU Communication Error (Service Code 39)

ECU Communication Line Inspection When the data is not sent from the ECU to the meter unit for more than about 10 seconds, the service code 39 is displayed. The data is sent through the CAN commun ...

Fuel Pump Relay Removal/Installation

The fuel pump relay is built in the relay box [A]. Refer to the Relay Box Removal in the Electrical System chapter. ...

Other materials:

Fuel Hose Inspection (fuel leak, damage, installation condition)
If the motorcycle is not properly handled, the high pressure inside the fuel line can cause fuel to leak [A] or the hose to burst. Remove the fuel tank (see Fuel Tank Removal in the Fuel System (DFI) chapter) and check the fuel hoses. Replace the fuel hose if any fraying, cracks [B] or ...

Rear Sprocket Removal
Remove the rear wheel (see Rear Wheel Removal in the Wheels/Tires chapter). NOTICE Do not lay the wheel on the ground with the disc facing down. This can damage or warp the disc. Place blocks under the wheel so that the disc does not touch the ground. Remove: Rear Sprocket Nu ...

Piston Ring Thickness Inspection
Measure the piston ring thickness. Use the micrometer to measure at several points around the ring. Piston Ring Thickness Standard: Top [A] 0.77 0.79 mm (0.0303 0.0311 in.) Second [B] 0.78 0.79 mm (0.0307 0.0311 in.) Service Limit: Top 0.70 mm (0.0276 in.) Second 0.71 mm (0.0280 ...