Kawasaki Ninja Service Manual: Backups

Kawasaki Ninja Service Manual / Self-Diagnosis System / Self-Diagnosis / Backups






(1): D-J Method: When the engine load is light like at idling or low speed, the ECU determines the injection quantity by calculating from the throttle vacuum (vacuum sensor output voltage) and engine speed (crankshaft sensor output voltage). This method is called D-J method.

(2): α-N Method: As the engine speed increases, and the engine load turns middle to heavy, the ECU determines the injection quantity by calculating from the throttle opening (throttle sensor output voltage) and the engine speed. This method is called α-N method.

*: This depends on the number of stopped cylinders.

The main throttle sensor is a rotating variable resistor that change output voltage according to throttle operating. The ECU senses this voltage change and determines fuel injection quantity, and ignition timing according to engine rpm, and throttle opening.

Input Terminal [A]: BL Output Terminal [B]: V/W Ground Terminal [C]: BR/BK


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 ...

Main Throttle Sensor (Service Code 11)

Other materials:

Shift Pedal Installation
Install the rubber damper to the shift pedal. Turn the chamfered side to inside. Assemble: Shift Lever [A] and Locknut [B] (Left-hand Thread) Shift Pedal [C] and Locknut [D] Tie-Rod [E] Turn the grooved end [F] of the tie-rod to the shift lever. Apply grease to the sliding ...

Water Temperature Sensor Output Voltage Inspection
NOTE Be sure the battery is fully charged. Turn the ignition switch to OFF. Remove the throttle body assy (see Throttle Body Assy Removal in the Fuel System (DFI) chapter). Disconnect the water temperature sensor connector and connect the measuring adapter [A] between these connectors ...

Payload and Tire Pressure
Failure to maintain proper inflation pressures or observe payload limits for your tires may adversely affect handling and performance of yourmotorcycle and can result in loss of control. The maximum recommended load in addition to vehicle weight is 180 kg (397 lb), including rider, passenger, ...