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:

Battery Removal
Turn off the ignition switch. Remove the front seat (see Front Seat Removal in the Frame chapter). Slide the red cap [A]. Disconnect the negative (–) cable [B] and then positive (+) cable [C]. NOTICE Be sure to disconnect the negative (–) cable first. Remove the band [D] ...

Oxygen Sensor Heater Power Source Voltage Inspection
NOTE Be sure the battery is fully charged. Turn the ignition switch to OFF. Remove the fuel tank (see Fuel Tank Removal in the Fuel System (DFI) chapter). Disconnect the oxygen sensor lead connector and connect the measuring adapter [A] between these connectors as shown in the fig ...

Spring Preload Adjustment
Remove the rear shock absorber from the frame (see Rear Shock Absorber Removal). Loosen the locknut and turn out the adjusting nut to free the spring. Special Tools - Hook Wrench T=3.2 R37: 57001-1539 Hook Wrench R=35: 57001-1580 To adjust the spring preload, turn in the adjusting n ...