Kawasaki Ninja Owners Manual: Engine Stop Switch - Right Handlebar Switches

In addition to the ignition switch, the engine stop switch must be in the
position for the motorcycle to operate.

The engine stop switch is for emergency use. If required, move the switch to the position.

Although the engine stop switch stops the engine, it does not turn off all the electrical circuits. Ordinarily, the ignition switch should be used to stop the engine.

Starter Button

The starter button operates the electric starter when the transmission is in neutral. Refer to the Starting the Engine section of the “How to Ride the Motorcycle” chapter for starting instr ...

Other materials:

Subthrottle Sensor Input Voltage Inspection
NOTE Be sure the battery is fully charged. Turn the ignition switch to OFF. Remove the air cleaner housing (see Air Cleaner Housing Removal in the Fuel System (DFI) chapter) Disconnect the subthrottle sensor connector and connect the harness adapter [A] between these connectors. Spec ...

Cam Wear Inspection
Remove the camshafts (see Camshaft Removal). Measure the height [A] of each cam with a micrometer. If the cams are worn down past the service limit, replace the camshaft. Cam Height Standard: Exhaust 35.043 35.157 mm (1.3796 1.3841 in.) Intake 38.243 38.357 mm (1.5056 1.5101 in. ...

Idle Speed Control Valve Actuator Resistance Inspection
Turn the ignition switch to OFF. Remove the air cleaner housing (see Air Cleaner Housing Removal in the Fuel System (DFI) chapter). Disconnect the idle speed control valve actuator connector [A]. Connect a digital meter to the idle speed control valve actuator connector [A] ...