Kawasaki Ninja Service Manual: Crankshaft Sensor (Service Code 21)

Kawasaki Ninja Service Manual / Self-Diagnosis System / Crankshaft Sensor (Service Code 21)

The crankshaft sensor has no power source, and when the engine stops, the crankshaft sensor generates no signals.

Intake Air Pressure Sensor #2 Output Voltage Inspection
Measure the output voltage at the intake air pressure sensor #2 in the same way as input voltage inspection, note the following. Disconnect the intake air pressure sensor #2 connector and c ...

Crankshaft Sensor Removal/Installation
Refer to the Crankshaft Sensor Removal/Installation in the Electrical System chapter. Crankshaft Sensor Resistance Inspection Refer to the Crankshaft Sensor Inspection in the Electrical ...

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Battery Maintenance
It is the owner’s responsibility to keep the battery fully charged. Failure to do so can lead to battery failure and leave you stranded. If you are riding your vehicle infrequently, inspect the battery voltage weekly using a voltmeter. If it drops below 12.8 volts, the battery should be ...

General Lubrication
Lubricate the points shown below, with either motor oil or regular grease, in accordance with the Periodic Maintenance Chart or whenever the vehicle has been operated under wet or rainy conditions. Before lubricating each part, clean off any rusty spots with rust remover and wipe off any g ...

Valve Seat Inspection
Remove the valve (see Valve Removal). Check the valve seating surface [A] between the valve [B] and valve seat [C]. Measure the outside diameter [D] of the seating pattern on the valve seat. If the outside diameter is too large or too small, repair the seat (see Valve Seat Repair). Val ...