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:

Exploded View
AL: Tighten the two clamp bolts alternately two times to ensure even tightening torque. G: Apply grease. R: Replacement Parts G: Apply grease. L: Apply a non-permanent locking agent. R: Replacement Parts Specifications ...

Steering Play Adjustment
Remove: Steering Stem Head with Handlebars (see Handlebar Removal in the Steering chapter). Bend the claws [A] of the claw washer [B] straighten. Remove: Steering Stem Locknut [C] Claw Washer Adjust the steering using the steering stem nut wrench [A]. Special Tool - Ste ...

Sidestand Switch Operation Inspection
Raise the rear wheel off the ground with the stand (see Rear Wheel Removal in the Wheels/Tires chapter). Inspect the sidestand switch [A] operation accordance to below table. Sidestand Switch Operation If the sidestand switch operation does not work, inspect or replace the foll ...