Kawasaki Ninja Service Manual: Exhaust Butterfly Valve Actuator Removal - Exhaust Butterfly Valve Actuator (Service Code 63)

Never drop the exhaust butterfly valve actuator especially on a hard surface. Such a shock to the actuator can damage it.

If the pulley bolt is removed without holding, the actuator damage will occur.

Exhaust Butterfly Valve Actuator Installation

Install the pulley [A] on the actuator so that the hole side [B] align with the groove [C] on the shaft. Make sure that the groove on the shaft is pointing toward the center of the screw [D]. ...

Other materials:

Wheel Rotation Sensor Air Gap Inspection
Raise the front/rear wheel off the ground (see Front/Rear Wheel Removal in the Wheels/Tires chapter). Measure the air gap between the sensor and sensor rotor at several points by turning the wheel slowly. Thickness Gauge [A] Wheel Rotation Sensor Air Gap Standard: Front 0.4 1.6 mm ...

Exhaust Device
This motorcycle is equipped with a exhaust device system. This system controls the valve in the exhaust pipe and produces stable engine power at low and middle engine speed. This exhaust device is controlled by the ECU, and adjustment or maintenance should be done only by a competent mechanic ...

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. Main Harness [B] Primary Fuel Injector #1 [C] Special Tool - Measuring Adapter: 57001-1700 ...